OBJECTIVE:To establish a method for the content determination of L(-)-Anabasine in different medicinal parts (stem,rhizome,fibrous root,rootlet) of Alangium chinense,and provide reference for its development and utilization. METH-ODS:HPLC was performed on the column of Thermo C18 with mobile phase of methanol-phosphate buffer solution(22∶78,V/V)at a flow rate of 1.0 ml/min,the detection wavelength was 259 nm,column temperature was 30 ℃;the injection volume was 10 μl. RESULTS:The linear range of L(-)-Anabasine was 0.020 62-0.257 80μg(r=0. 999 9);the limit of quantitation was 1.7 ng,limit of detection was 0.5 ng;RSDs of precision,stability and reproducibility tests were lower than 2%;recovery was 97.38%-98.86%(RSD=0.6%,n=6). The content of L(-)-Anabasine in different medicinal parts was the fibrous root>the rootlet>the rhizome>the stem. CONCLUSIONS:The method is simple,accurate,reproducible and specific,and suitable for the content determination of L(-)-Anabasine in different medicinal parts(stem,rhizome,fibrous root,rootlet)of A. Chinense.

Description of the security grading protection used in the security protection system for information systems in medical organizations. Elaboration of the research ideas, process and some outcomes for the Fundamental Requirements for Security Grade Protection of Information Systems in Medical Organizations, from the five aspects of system modeling, grading guidance for industries, threat and risk analysis, security objective output, and security adjustment.

At present PLA and its copolymer is a kind of most widely used biodegradable polymers to prepare microspheres because of its good biocompatibility. The double emulsion method is the most used technique for microspheres loade with water-soluble drugs, proteins and peptides. Microspheres with different particle size or release character could be used in different applications such as targeted drug delivery or long-acting drug delivery. The characters of microspheres are influenced by the preparative parameter. This article reviewed the preparative parameters that influence the character of microspheres.

目的观察MOTOmed智能运动训练系统对脑卒中偏瘫患者上肢运动功能和日常生活活动能力(ADL)的影响，并进行相关费用的分析和评价。方法将60 例脑卒中患者分为对照和治疗组各30 例，均采用常规康复治疗，治疗组在此基础上增加MOTOmed智能运动训练系统训练，并对每组患者在入组时、治疗2 个月和4 个月末分别采用简式Fugl-Meyer 评定法(FMA)、Barthel 指数(BI)对患者的上肢运动功能和ADL进行评定，并进行成本-效果分析。结果治疗后，治疗组FMA和BI 评分优于对照组(P<0.05)。两组患者住院总成本之间无显著性差异(P>0.05)，治疗组各项指标每改善1 分(或5 分)所产生的相关成本费用明显低于对照组(P<0.05)。治疗组与对照组比较，上肢运动功能评分每增加1 分，少花费56.3 元；ADL评分每提高5 分，少花费278.5 元。结论脑卒中偏瘫患者上肢运动功能康复治疗中，应用MOTOmed智能运动训练系统是一种既经济又有效的康复治疗方案。

Objective To observe the effects of endobronchial decimeter wave therapy on ventilation func-tion of patients with the constrictive endobronehial tuberculosis (EBTB). Methods Forty-four EBTB patients weredivided into an experiment group and a control group. All the patients of the two groups were treated with generalchemotherapy, the patients of experiment group accepted endobronehial decimeter wave therapy at the same time. Thepurulent secretion or caseous necrosis of the diseased region was drawn-off from the bronchi lumina by bronchoseope,then the antenna of the decimeter wave irradiator was inserted into the diseased region through the biopsy pore to per-form the radiation. The vital capacity, forced expiratory volume in the 1st second and maximal voluntary ventilationwere tested before and 60 days after the operation. Results Endobronehial decimeter wave therapy significantly re-duced the constriction of bronchi, improved the lung ventilation function, and relieved the anhelation symptom of pa-tients in the experiment group to a significantly larger extent than those in the controls group (P< 0. 01 ). Moreover,the therapeutic effects of endobronchial decimeter wave therapy were more significant for the endomembrane tuberculo-sis with pulmonary closure due to ulcerous necrosis or granulation hyperplasy ( P < 0. 05 ) , but ineffective for the atro-phy due to fibrous constriction. Conclusion Endobronchial decimeter wave therapy could reduce the incidence oflung closure in endomembrane tuberculosis and improve lung function.

Objective To report the MRI findings of brain damage obsenrved in neonatal patients who suffered from isolated hypoglycemia and to explore the value of diffusion-weighted imaging(DWI) inearly detection of neonatal hypoglycemic brain iniun,. Methods Twelve neonates with isolated hypoglycemia(10 of the 12 were diagnosed to suffer from hypoglycemic encephalopathy)were enrolled in this study.They were first scanned at age from 3 days to 10 days with Tl WI,T,WI and DWI(b is 0 s/mm2,1000 s/mm2),and 4 of them were then scanned from 7 days to 10 days following the initial scan.All acquired MR images were retrospectively analysed.Results First series of DWl images showed distinct hyperintense signal in 11 cases in several areas including bi lateral occipital cortex(2 cases),right occipital cortex(1 case),left occipital cortex and subcortical white matter(1 case),biIateral occipital cortex and flubcortical white matter(2 cases),bilateral parieto-occipital cortex(2 cases),bilateral parieto-occipital cortex and subcortical white matter(2 cases),the splenium of corpus catlosum(4 cases),bilateral corona radiata(2 cases),left eaudate nucleus and globus pallidus(1 case),bilateral thalamus(1 case),bilaterally posterior limb of internal capsule(1 ease).In the initial T1 WI and T2,WI images,there were subtle hypointensity in the damaged cortical areas(3 cases),hyperintensity in the bilaterally affected occipital cortex(1 case)on T1 weighted images,and hyperintensity in the affected cortex and subcortieal white matter with poor differentiation on T2 weighted images.The followed-up MRI of 4 cases showed regional encephalomalaeia in the affected occipital lobes(4 cases),slightly hyperintensity on T2 weighted images in the damaged occipital cortex(2 cases),extensive demyelination(1 case).disappearance of hyperintensity of the splenium of corpus callosum(1 case),and persistent hyperintensity in the splenium of corpus callosum (1 case)on T2 weighted images.Conclusion The findings suggest that posterior parieto-occipital regions are most frequently injured in neonatal period due to severe hypoglycemia.DWI is a useful technique in the early detection and evaluation of hypoglycemic brain injury of neonates.

Objective To compare the PET response criteria in solid tumors (PERCIST) and response evaluation criteria in solid tumors (RECIST) in the evaluation of therapeutic response in 49 non-small-cell lung cancer(NSCLC) patients.Methods Forty-nine NSCLC patients who received chemotherapy but no surgery were studied.Therapeutic responses were evaluated using 18 F-FDG PET and CT according to the RECIST and PERCIST methods.The PET-CT scans were obtained before chemotherapy and about 2 or 6 weeks after completion of chemotherapy.Firstly the reduction rates of tumor diameter and reduction rates of tumor standardized uptake value were compared with paired t-test.Then the response was classed into 4 levels according to RECIST and PERCIST:PD and PMD =1,SD and SMD =2,PR and PMR =3,CR and CMR =4.Pearson and Chi-square test was used to compare the proportion of four levels in RECIST and PERCIST.Finally one target lesion and two target lesions were compared for RECIST therapeutic evaluation in 33 cases with two target lesions.Results The diameter was (3.52 ± 1.65) cm before the therapy and (2.39 ± 1.43)cm after the therapy.The standardized uptake value was 8.78 ±4.18 vs.5.06 ±3.62 before and after therapy for the first target lesions in 49 patients.The differences of reduction rates between tumor diameter and standardized uptake value were not significant because of selection bias (0.32 ± 0.27 vs.0.28 ±0.64,t =0.176,P ＞0.05).However,there was a significant difference when the reduction rate was compared only in 39 patients in which the standardized uptake values were reduced after therapy (0.39 ± 0.29 vs.0.52 ±0.28,t =-4.08,P ＜0.01).The results of classification were 1/13 for CR/CMR,25/16 for PR/PMR,22/15 for SD/SMD,1/5 for PD/PMD,and 33 cases had no consistent results from RECIST and PERCIST.There was a significant difference in response classification between RECIST and PERCIST (x2 =16.252,P ＜ 0.01).No significant difference was found between one target lesion and two target lesions for RECIST evaluation results in 33 cases (x2 =1.171,P ＞ 0.05),but results of response classification were changed in 5 cases.Conclusions PERCIST criteria may be more sensitive in NSCLC therapeutic evaluation comparing to RECIST criteria.There is a higher proportion with CMR and PMD in PERCIST,but its effect on the prognosis is not yet clear.The number of target lesions may affect the results of therapeutic evaluation with RECIST criteria.

Objective To study the drug resistance of infection bacteria deriving from acute appendicitis patients.Methods The separation and the drug sensitive characteristic of bacteria deriving from the specimen of acute appendicitis patients were ana-lyzed,who were admitted in the general department of our hospital from January to June 2013.Results One hundred and six bacte-ria strains were isolated.Among them,100 (94.34%)strains were Gram negative bacteria strains,including escherichia coli,kleb-siella pneumonia bacillus and verdigris fake single spore bacterium,in a proportion of 67.92%,1 1.32% and 5.66% respectively. The resistance of piperacillin,ciprofloxacin,gentamycin,levofloxacin,tobramycin and cefepime was high in Gram negative bacteria, while the lower resistance to piperacillin/ tazobactam,cefoxitin and imipenem.Conclusion The resistant rate of acute appendicitis infection bacteria is high.

Objective To evaluate the optimization of perfusing artery and contrast agent dose, and to determine the effect of precontrast injection of papaverine into the perfusing artery or not on the degree of contrast enhancement of the hepatic parenchyma during MRAP in dog models. Methods Sixteen dogs were included in this study and distributed to three study groups (perfusing artery, dose of Gd-DTPA and use of papaverine or not). Animals were anesthetized with Thiopental Sodium. After placement of a 5F end hole angiography catheter with no metal parts into the perfusing artery, the dogs were transferred immediately to the MR imaging unit. Unenhanced GRE MR and MRAP images were performed with a 2.0 T superconducting magnet. Signal intensity of liver parenchyma was measured with 6 different regions of interest. Relative value (%) of liver parenchymal enhancement was measured and compared. Time-enhancement curves were created and compared. Results MRAP images with good quality were obtained in all 16 dogs. The peak relative value of liver parenchymal enhancement and the time to the peak enhancement was similar in the superior mesenteric artery (SMA) group and in the splenic artery (SA) group. The peak relative value of liver parenchymal enhancement was the lowest in the 0.025 mmol/kg group among all groups. There was no statistical difference in the time to relative peak liver enhancement across the four groups. The time to relative peak liver enhancement in the group with papaverine injection was statistically earlier than that in the group without papaverine injection. Conclusion MRAP is a new and feasible imaging technique to detect hepatic masses before operation. When a 20 ml mixed solution of Gd-DTPA(0.050 -0.100 mmol/kg)was injected into perfusing artery at the rate of 1 ml/s, MRAP image of best liver parenchymal enhancement in dogs could be obtained at 21-28 s after the start of injection of Gd-DTPA. We can place catheters in SMA or SA and there was no statistical difference on MRAP images and time-enhancement curves. The dose of 0.050-0.100 mmol/kg Gd-DTPA was sufficient for MRAP. Application of papaverine precontrast advanced the time to peak liver enhancement, but the peak value of liver enhancement was not affected.

Objective To assess the diagnostic capability of spiral CT for giant pure seminoma in intraabdominal undescended testis.Methods Spiral CT of 6 cases with pure seminoma of inabdominal testes as proved by surgery and pathology were analyzed.All patients were male,and the age ranged from 31 to 45 years old with the mean of 35.2 years old.Results All tumors were located along the path of testicular descent on CT images.The arterial-supply of tumors all came from the testicular artery ipsilaterally.The draining vein could be seen between the mass and inferior vena cava or left renal vein in 5 cases.Isolaterally spermatic cord was absent in the inguinal region.Isolateral kidney was shifted upward.CT scans typically demonstrated a unilateral,mixed solid and cystic mass,with areas of solid located at the lateral aspect and areas of necrosis at the medial aspect.Contrast-enhanced CT scan showed mild enhancement of solid areas and band-like septal enhancement in areas of necrosis.There is no evidence of calcification or fat within the mass.Conclusion Spiral CT proves to be a very useful preoperative imaging modality for the giant intraabdominal seminoma.