Objective To evaluate the feasibility of interstitial implantation of ~(125)I seeds for recurrent or metastatic malignant tumor at the Head and Neck.Methods From January 2003 to July 2007,29 patients received interstitial implantation of ~(125)I seeds in our hospital because of recurrent or metastatic malignant tumors at the head or neck after surgery or chemotherapy.Under local anesthesia and guidance of CT,B-ultrasonography,or endoscopy,~(125)I seeds were implanted into the tumor tissues with intervals of 0.5-1.0 cm.The matched peripheral dose(MPD)was 90-160 Gy,and the radioactive activity was set at 29.6 MBq per seed.Results The operation was completed in all the patients.A median of 23 seeds(12-67)were implanted in each case.No complications,such as hemorrhage,infection,or seed migration,occurred in the patients.The patients were followed up for 3-24 months(mean,16 months).During the period,the rate of local control was 55%(16/29)at 3 months,71%(20/28)at 6 months,45%(10/22)at 12 months,and 36%(5/14)at 2 years.Conclusion Interstitial implantation of ~(125)I seeds is feasible for recurrent or metastatic tumor at the head or neck with a good short-term outcome.

Aim To find out the effect of the different organic solvents extracts and plumbagin from Plumbago zeylanica L.on EMT-6 breast cancer of BALB/C mouse and transplanted S180 of KM mouse primarily.Method Experiments of animal transplanted tumor in vivo were adopted.Results ① The high dose of chloroform group and plumbagin group could inhibit the growth of EMT-6 breast cancer in BALB/C mice in vivo.Compared with that of physiological saline group,tumor weight has obviously lightened(P

Objective To observe the effect ofQizhi Weitong Granules combined with rabeprazole on gastroesophageal dynamics and inflammatory factors in reflux esophagitis (RE) and explore its clinical significance.Methods Nighty-six RE patients from Changping Chinese Medicine Hospital were selected in this study,which randomly divided into control group (n =48) and observation group (n =48).The control group was given rabeprazole 10 mg/time (2 times/d) for 4 weeks.The observation group was given rabeprazole 10 mg/time (2 times/d) and Qizhi Weitong Granule 5 g/time (3 times/d) for 4 weeks.The gastrin and motilin expression was detected by radioimmunity analysis.The IL-17 and IL-23 was detected by ELISA analysis.The rate of clinic effects and adverse reaction was compared.Results There was no significant difference ofgastrin and motilin between the two groups before treatment.After treatment,gastrin and motilin was increased in the two groups (P ＜ 0.05,0.01).However,gastrin and motilin was higher in observation group than that in control group after treatment (P ＜ 0.05).There was no significant difference ofIL-17 and IL-23 between two groups before treatment.After treatment,IL-17 and IL-23 was decreased in the two groups (P ＜ 0.05,0.01).However,IL-17 and IL-23 was lower in observation group than that in control group after treatment (P ＜ 0.05).The rate of clinic effects was 93.8％ in observation group,which was better than 81.3％ in control group (P ＜ 0.05).The rate of adverse reaction was 10.4％ in control group and 8.3％ in observation group.There was no significant difference between two groups.Conclusion Qizhi Weitong Granules combined with rabeprazole can improve gastroesophageal dynamics and inhibit inflammatory response in RE patients,with significantly clinical effect and safety.

AIM: To evaluate the cardiac contractility and relaxation by Doppler tissue imaging (DTI) combined with myocardial contrast echocardiography (MCE) via injection of contrast media, Albunex. METHODS： Nineteen healthy mongrel dogs were conducted 60 min ligation of left anterior descending coronary artery (LAD), followed by reperfusion of 60, 120 and 180 min to establish an acute myocardial ischemic-reperfused canine model. (1) MCE was performed by bolus injection of Albunex at pre-reperfusion and at post-reperfusion. The perfused defect area defined by MCE at pre-reperfusion was regarded as risk area (RAMCE), while perfused defect area at post-reperfusion was regarded as no-reflow area (NRAMCE). When the ratio of NRAMCE to RAMCE exceeded 25%, myocardial reperfusion was considered incomplete, I.e., no-reflow group; If the ratio was <25%, myocardial reperfusion was considered adequate, I.e., reflow group. (2) Left ventricular ejection fraction (LVEF) and wall thickness ratio (△T%) of LV anterior wall were determined. (3)S-wave, e-wave and a-wave velocities at the LV anterior wall were determined by DTI. The e/a ratio was measured. RESULTS: The results of MCE showed 7 dogs in reflow group and 10 dogs in no-reflow group. (1) LVEF in reflow group gradually increased with time course after myocardial reperfusion, and in no-reflow group, however, LVEF increasingly declined with ongoing myocardial reperfusion. At the same reperfusion time point, LVEF of no-reflow group was significantly lower than that of reflow group. (2) △T% in reflow group improved gradually, and however, it can not come back to that of baseline at 180-min reperfusion. △T% in no-reflow group had no signal of recovery with progressive reperfusion. (3) S-wave, e-wave velocities measured by DTI significantly declined after ligation of LAD, and a-wave velocity increased, leading to decline of e/a. After myocardial reperfusion, s-wave, e-wave velocities and e/a in reflow group gradually increased at post-reperfusion, and a-wave velocity somewhat declined. In no-reflow group, on the other hand, s-wave, e-wave velocities and e/a progressively declined and a significant difference was present between reflow group and no-reflow group (P<0.05). CONCLUSION: Cardiac contractility and relaxation can not be recovered during myocardial microvascular impairment. This change may be further deteriorated with size enlargement of no-reflow area. DTI may provide a sensitive, reliable method for quantifying cardiac contractility and relaxation.

Objective To observe the changes of serum calcium, phosphorus, calcium-phosphorus product and para-thyroid hormone(PTH)levels after treatment with different concentrations of calcium dialysate in combination with calcitri-ol. Methods Thirty-six patients on maintenance hemodialysis were randomly divided into Dca1.25 group and Dca1.5 group, 18 cases in each group. Patients took different doses of calcitriol on the different values of PTH basis. Changes of se-rum calcium, phosphorus, calcium-phosphorus product,PTH and bone alkaline phosphatase (BAP) levels were recorded re-spectively on four time points from prior treatment and 1, 3 and 6 months of therapy. The levels of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were also observed. Results There was an interaction between treatment effects and time effects in serum calcium, phosphorus, calcium-phosphorus product levels in two groups (P＜0.05). With the dura-tion of treatment, there was a trended to decrease and increase respectively in DCa 1.25 group and DCa 1.5 group, and trend-ed to stabilize for therapy 3 to 6 months. There was no interaction between serum PTH and BAP levels and time effects in two groups. There was no statistical difference in simple treatment effects and time effects. The serum PTH level showed a trend of increase gradually in DCa1.5 group with the duration of treatment. In DCa 1.25 group, the serum PTH level trended to stabilize after 3-month therapy and showed a trend of decrease gradually. There was an interaction between treatment effects and time effects in SBP in two groups, but no interaction in DBP. There was a significant difference in SBP before and after treatment in two groups. The level of SBP reduced tardily with time of treatment and reduced significantly after 3 and 6-month therapy. Conclusion The application of DCa1.25 dialysate in combination with calcitriol decreased serum calci-um effectively and kept the lower limit of normal value, which increased tolerability of active vitamin D and calcium carbon-ate therapy, and decreased SBP in maintenance hemodialysis patients.

Objective To evaluate the impact of low-dose 131I therapy and high-dose 131I therapy on the clinical outcome in PTC patients coexisting with Hashimoto's thyroiditis (HT).Methods A total of 140 non-distant metastatic PTC patients (16 males,124 females,age range:16-66 years) from July 2010 to December 2014 were enrolled in this retrospective study.Patients concurrent with HT (n=84,group A) were divided into low-dose group (1 110 MBq,n=56,group A1) and high-dose group (5 550 MBq,n=28,group A2) according to 131I ablation dose.Patients without HT (n =56) were enrolled as control group (group B),and received 1 110 MBq of 131I.The thyroid remnant ablation outcome was evaluated according to 131I diagnostic whole-body scan (Dx-WBS),neck ultrasonography (US),serum Tg and TgAb level 6-8 months after 131I ablation therapy.The successful ablation rates were compared by x2 test.Kruskal-Wallis rank sum test was also used.Results There were no significant differences among the 3 groups in terms of both clinicopathological features and postoperative remnant thyroid (H:0.203-2.944,x2:0.271-0.970,all P＞0.05).When negative Dx-WBS and US were deemed as successful ablation criterion,complete ablation rate was found significantly more in group B (94.6％,53/56) than that in group A1 (82.1％,46/56;x2=4.264,P＜0.05),but no significant difference was found between group A2 (85.7％,24/28) and group A1 (x2 =0.318,P＞0.05).When combining negative sTg (sTg＜1 μg/L,TgAb＜46 kU/L) with the above 2 criterions to assess remnant ablation outcome,group B also had a higher successful rate to achieve complete ablation (85.7％,48/56) compared with group A1 (75.6％,34/45),but without statistical significance (x2=2.978,P＞0.05),and no difference was observed between group A2 (12/15) and group A1 (x2=1.320,P＞ 0.05).Conclusion Non-distant metastatic PTC patients coexisting with HT has undesirable 131I ablation outcome compared with those without HT,increasing 131I dose is unhelpful to enhance efficiency of remnant ablation for PTC patients with HT.

AIM: To investigate the effects of radix pseudostellariae on cardiac function and matrix metalloproteinases(MMPs) in rat chronic heart failure induced by coronary artery ligation.METHODS: Rat model of chronic heart failure was produced by ligating the coronary artery for 6 weeks.The cardiac functions were determined by observing the hemodynamics parameters.mRNA expressions of MMP-2 and MMP-9 in left ventricular tissue were detected by RT-PCR and activities of MMPs were assayed by zemography.RESULTS: Cardiac function was remarkable turbulence after coronary artery ligation 6 weeks,according to the results of the hemodynamics.The mRNA contents and activities of MMP-2 and MMP-9 in left ventricular tissue were significantly elevated.Radix pseudostellariae remarkable ameliorated the cardiac functions,inhibited the mRNA contents and activities of MMP-2 and MMP-9 in left ventricular tissue of rat with chronic heart failure after continued 5 weeks treated with decoction of radix pseudostellariae.CONCLUSION: The decoction of radix pseudostellariae ameliorates cardiac functions of rat with chronic heart failure.The mechanism maybe involves in the inhibition of the MMP-2 and MMP-9 mRNA expression and activities in cardiac ventricles.

A highly sensitive electrochemical deoxyribonucleic acid(DNA) biosensor based on multi-walled carbon nanotubes(MWNT)/Ag-TiO_2 composite film was developed. The solution containing Ag-TiO_2-MWNT composite was casted on the carbon paste electrode surface to form a robust film, which combine the advantages of the good biocompatibility of Ag-TiO_2 naocomposite and the fine conductivity, as well as the large active surface area of carbon nanotubes. The composite could greatly improve the immobilization capacity of the probe DNA. The morphologies and electrochemistry of the nanocomposite film were investigated by scanning electron microscopy and electrochemical techniques including electrochemical impedance spectroscopy and cyclic voltammetry, respectively. DNA hybridization events were monitored by a label-free method of electrochemical impedance spectroscopy. This label-free electrochemical impedance DNA biosensor showed high sensitivity and selectivity for phosphinothricin acetyltransferase gene sequence assay. The multicomponents films also displayed a high stability during repeated regeneration and hybridization process.

Objective As members of CNEDERT, we were trusted to take the mission of medical rescue in April of this year in Yushu area of Qinghai province. As soon as we heard of the news of earthquake with shock of 7.1 on Richter scale happened on 14th April 2010, our team of 32 members from the General Hospital of Armed Police Force rapidly rushed to get there at 19 o'clock on 14th April. It is a cold plateau with 4000 meters in average above sea level. Of course, they would face many difficult problems and some of them could not be figured out in advance. It was really a new and big challenge. First of all, we had to bear the very low barometric pressure,threatening lives of team members. In order to fulfill the mission of medical rescue, and to prevent the acute mountain sickness (AMS) ,we monitored the physiological changes of every member. Method A total of 32 members aged from 27 - 42 years old with average age of (33.26 + 12.54) years, 6 male and 6 female, gathered at Peking, 50 meters above sea level, 6 hours ahead of getting to Yushu and received physical examination with measurements of SaO2, HR, Hb and breath holding test. The team worked in Yushu area for 13 days and returned back to Peking on 27th April at 13 o'clock. The measurements of SaO2, HR and He were kept on from 14th April to 4th May, 21 days in total. The occurrence of AMS was surveyed by questionnaire from 18 to 48 hours after arrival,and the AMSA was diagnosed and scored according to the Lake Louise consensus on the definition and quantification of altitude illness. When the score was equal or above 3, it was considered to be AMS. Our work activities included searching the victims under the collapsed building, carrying out treatment and operation as soon as possible in the mobile hospital, doing medical round visiting, public health and disease prevention, work of joint rescue of multiple professions and psychological counseling. Results Of them 26 (81.25%) members suffered from AMS of various severities and few of them had pulmonary edema and hematuria, and those with SaO2 below 60% were sent down to the plain of low level above sea. The average level of SaO2 at Peking was ( 98.21 + 2.63) %, and it suddenly dropped to (66.31 ± 4.24)% on the first day of entering Yushu area, and from the 2nd day on, it gradually increased to (84.80 ± 4.20)% on the 13th day of stay in Yushu. On the 14th day, we returned back to Peking, the average SaO2 gradually went up from ( 85.57 + 2.73) % to (85.70 + 3.11 ) % on the 15th day,(87.93±2.63)% on the 17th day, (92.21 ±3.62)% on the 18th day, and (98.2333 ± 1.78)% On the 21st day (5th May ). At plain the average HR was (78 ± 11 ) beats/min, and it went up abruptly to ( 121 ± 18) beats/min on the first day of arrival to Yushu, and from the 2nd day on, it slowly lowered down to (99± 12) beats/min at the end day of stay in Yushu area. When we got back to Peking, the average HR gradually normalized from (91± 18) beats/min to (77 + 16) beats on the 5th May. The average Hb in Peking was ( 118 ± 32) g/L, and it gradually increased to ( 137 ± 18) g/L on the 5th day and to ( 161 ± 27) g/L on the 11th day after arrival, and it gradually dropped to (127:± 13) g/L on the 17th day and to (120± 13) g/L on the 21st day. Various measures were taken to treat and prevent the AMS with Chinese herbal medicines such as hongjingtian (Rholiola sacra [Prain ex Hamet] Fu), droplet-sized pill of danshen (salva miltiorrhiza Bge), slice of xiyangshen (Panax quinquefolium L)for lozenge which had some effect of minimizing the symptoms of AMS, and with easily digestible diet catered for in less amount of food in each meal and more meals every day, and diet was composed of mainly carbohydrate and vitamins. Large amount of fluid was required at least 4000 - 6000 mL daily guided by the number of urination at least once or twice a day. For the severe case with shortness of breath and sense of oppression over chest, the oxygen inhalation and intravenous glucose saline with small dose of hydrocortisone were given. Conclusions There were great changes in SaO2, HR and Hb of individuals rushed into high altitude area from plain of low level above sea in a short length of time. But those individuals had the capability of adaptation to ameliorate bit by bit those changes day by day until 13 days of stay, the end of stay at high altitude. On that day, the levels of SaO2, HR and He were still far away from normal. And those changes took 6 days to resume the original levels after the members retumed to the plain. Of them, 81.25% (26/32) members suffered from AMS of various severities. Various measures taken to treat and prevent the AMS are very important. In addition, working at high altitude area, the medical equipment and facilities should be miniaturized for easy portability on the rugged and narrow footpath in order to preserve the energy of medical members.

OBJECTIVE:To reduce patient waiting time for drugs by improving work efficiency via the optimization of the in-telligent workflow of outpatient pharmacy. METHODS:The problems existing in each link in the workflow after the adoption of au-tomated drug dispensing machine in the outpatient pharmacy of our hospital were analyzed. Measures were developed and imple-mented,on the basis of the factors affecting each link including adding drugs,making up a prescription and dispensing drugs,to optimize the workflow. The effect after the optimization was evaluated,with the time it takes to make up a prescription and to dis-pense drugs and patient waiting time for drugs as the indexes. RESULTS:The averaged time it takes a pharmacist to make up a pre-scription and to dispense drugs and patient waiting time for drugs significantly reduced from 3.4 min,9.3 min and 12.7 min to 1.0 min,6.1 min and 7.1 min respectively,after taking measures such as adjusting the number of the drug types,tracks and positions in the machine,adding the contrasting pictures of the drugs which were similar on the system interface for adding drugs,standardiz-ing the process of adding drugs,improving and allocating information labels,adjusting the process of dispensing drugs and adding new small packages of drugs within 6 months. CONCLUSIONS:The optimized intelligent workflow in the pharmacy can reduce pa-tient waiting time for drugs,increase patient satisfaction and promote the development of intelligent pharmacy.