AIM:To establish a method for evaluating the principle components of Herba Artemisiae Annuae from different habitats.METHODS:Using Fourier transform infrared spectrometry(FTIR),the characteristic peaks of fingerprints of samples from 12 habitats were recognized and compared.RESULTS:The samples from 12 habitats were obviourly different in number,frequency and intensity of peaks.CONCLUSION:FTIR is applied to analysis of principle components of Herba Artemisiae Annuae from different habitats and an operable method of quality control and discrimination for them is provided.

OBJECTIVE:To establish the method for simultaneous determination of 5 saponins in Lonicerae Flos. METHODS:Using macranthoidin B as a reference,HPLC method was adopted to calculate the relative correction factor(RCF)of it to macran-thoidin A,dipsacoside B,macranthoside A and macranthoside B. The contents of above 4 saponins were calculated through RCF. Using the contents of saponins determined by external standard method as measured value,the calculated value was compared with measured value. RESULTS:The linear ranges of macranthoidin A,macranthoidin B,dipsacoside B,macranthoside A and macran-thoside B were 0.316-6.32 μg(r=0.9973),0.453-9.06 μg(r=0.9982),0.231-4.62 μg(r=0.9996),0.342-6.84 μg(r=0.9984) and 0.147-2.94 μg(r=0.9961),respectively. RSDs of precision,stability and reproducibility tests were all lower than 2.0%. The recoveries were 97.74%-104.51%(RSD=2.37%,n=6)、96.70%-103.20%(RSD=2.37%,n=6)、96.12%-103.61%(RSD=2.45%, n=6)、98.80%-104.70%(RSD=2.32%,n=6)、99.21%-102.92%(RSD=1.39%,n=6),respectively. There was no statistical sig-nificance between calculated value and measured value(P>0.05). CONCLUSIONS:The method is simple,precise,stable and re-producible. It can be used for the determination of saponins in Lonicerae Flos.

Objective To evaluate the clinical efficacy of a stroke unit combined with community health services for treating stroke survivors. Methods A total of 120 stroke patients were randomly divided into a " stroke unit combined with community medicine" group ( combined group) , a stroke unit group and a general treatment group. Patients in the former 2 groups were treated in a hospital stroke unit during their hospitali-zation. The general treatment group was given conventional medical treatment. After discharge, the combined group continued to receive regular rehabilitation therapy and guidance in the form of community medical services, while the stroke unit group received follow-up only. Assessment was by means of Fugl-Meyer scores, the Barthel index and self-rating on a depression scale ( SDS). The patients were assessed at admission, on discharge and 3 months after discharge. Results There were no significant differences in average limb motor function, ability in the activities of daily living ( ADL) or depressive mood among the 3 groups on admission, but at discharge, limb motor function and ADL ability in the combined group and stroke unit groups were significantly superior to those in the general therapy group. Limb motor function and ADL ability in the combined and stroke unit groups had improved further 3 months after discharge, with more significant improvements in the combined group. No significant change in depression was observed in any group at discharge, but average depression scores in the combined and stroke unit groups improved significantly in the 3 months after discharge, and there was a statistically significant difference between the combined group and the general group. Conclusion Supplementing the work of a stroke unit with community health services significantly improves stroke patients' recovery of limb motor function and ADL ability.

Objective To modified doxorubicin liposome with transferrin(TF),and to investigate its inhibition efficacy on the proliferation of human breast cancer cells.Methods The liposome was prepared by thin film ultrasonic,and doxorubicin liposomal was prepared by sulfuric acid gradient.The TF-doxorubicin lipo-some was prepared by the post insertion method.The uptake of TF-liposomal doxorubicin on breast cancer cells MCF-7 and MDA-MB-231 were detected by confocal microscopy.The killing ability of TF-doxorubicin liposomal targeting for MCF-7 and MDA-MB-231 were detected by MTT assay.Inhibitory effect of TF-doxorubicin lipo-some on the growth of MCF-7 and MDA-MB-231 were detected by soft agar colony assay.Results Confocal microscopy result showed that the uptake of TF-liposomal doxorubicin on MCF-7 and MDA-MB-231 were signifi-cantly higher than doxorubicin liposomal.Cell-killing ability on MCF-7 and MDA-MB-231 showed that the IC50 in TF-liposomal doxorubicin [MCF-7 cells:(20.8 ±3.2)μmol/L;MDA-MB-231 cells:(20.1 ±3.0)μmol/L)] were significantly lower than the liposomal [(1 58.6 ±24.6)μmol/L;(1 60.1 ±25.1 )μmol/L)]and free doxorubicin [(1 61 .7 ±26.2)μmol/L;(1 66.9 ±27.0)μmol/L)],with significant differences(F =1 1 6.03, P <0.001 ;F =75.29,P <0.001 ).Soft agar colony assay showed that the inhibition of TF-doxorubicin lipo-some on colony growth were significantly higher than doxorubicin liposome,free doxorubicin and control [dia-meter of MDA-MB-231 cells:(60.5 ±10.4)μm,(94.3 ±16.8)μm,(1 31 .8 ±22.6)μm,(162.8 ±30.3)μm;diameter of MCF-7 cells:(31 .8 ±5.5)μm,(62.1 ±11 .1 )μm,(108.6 ±1 8.6)μm,157.4 ±29.3)μm],with significant differences (F =87.17,P <0.000 1 ;F =178.23,P <0.000 1 ).Conclusion TF-doxorubicin lipo-some has a significant inhibitory effect on the proliferation of breast cancer cells in vitro,and can effectively and specifically kill the breast cancer cells,which provides theoretical basis for the treatment of breast cancer in vivo.

Antigens, CD34 ; metabolism ; Carcinoma, Signet Ring Cell ; genetics ; metabolism ; pathology ; surgery ; Codon ; Diagnosis, Differential ; Exons ; Female ; Follow-Up Studies ; Gastrectomy ; methods ; Gastrointestinal Neoplasms ; genetics ; metabolism ; pathology ; surgery ; Gastrointestinal Stromal Tumors ; genetics ; metabolism ; pathology ; surgery ; Humans ; Melanoma ; metabolism ; pathology ; Middle Aged ; Neurilemmoma ; metabolism ; pathology ; Point Mutation ; Proto-Oncogene Proteins c-kit ; metabolism ; Receptor, Platelet-Derived Growth Factor alpha ; genetics ; metabolism

Objective To investigate the efficacy and safety of triple anti-platelet therapy (low-dose tirofiban plus aspirin and clopidogrel) comparing to dual anti-platelet therapy (aspirin and clopidogrel) in preventing stent thrombosis (ST) and major adverse cardiac events (MACE) within 30 days after implantation of drug-eluting stent (DES) in ACS patients.Methods A total of 2904 ACS patients treated with DES from March 2004 to November 2010 were enrolled for retrospective study.Of them,1145 patients were treated with dual anti-platelet therapy (DAT) and 1759 patients with triple anti-platelet therapy (TAT).The incidences of ST,MACE (cardiac death,urgent target vessel revasculanization and myocardial infarction) and side effects occurred within 30 days after PCI were compared between two groups by Fisher' s exact test.Results (1)Although there were significant differences in age,the degree of coronary stenosis,the number of smokers,diabetes,hyperlipidemia and coronary diffuse lesion between two groups,but these differences did not impact on the end point events showed by Cox analysis.The rest of the general condition of patients between two groups was no difference.(2) The incidence of ST as primary end point was lower in TAT group than that in DAT group (0.11％ vs.1.05％,P =0.0036),reducing the relative risk by 89.52％.In addition,the incidence of MACT as secondary end point was also lower in TAT group than that in DAT group (0.17％ vs.1.48％,P =0.0005),reducing the relative risk by 88.51％.Among the total,the incidences of cardiac death and urgent target vessel re-vascularization in TAT group were lower than those in DAT group with significant differences.However,there was no difference in the incidence of myocardial infarction between two groups.(3) Both two groups had no severe hemorrhage complication,the incidence of mild hemorrhage was similar in two groups (0.45％ vs.0.35％,P =0.6720).Nesides,the incidence of acute thrombocytopenia between two groups was also similar (0.45％ vs.0.09％,P =0.083).Conclusions The patients with ACS in the TAT group have significant lower incidence of ST and MACE than those in the DAT group within 30 days after PCI.While the risk of bleeding and the incidence of acute thrombocytopenia do not increase.

ObjectiveTo compare orthotopic liver transplantation (OLT)and combined liverkidney transplantation (CLKT) in the treatment of severe hepatitis B.MethodsIn this study 52 patients of severe hepatitis B were allocated to OLT (40 cases) or CLKT( 12 cases) at our department from Jan.2001 to Sep.2005.The perioperative complications and the result of follow-up were analyzed.ResultsThe preoperative renal functions in CLKT cases were severer than that in OLT cases.Postoperative severe infection was more common in CLKT cases than that in OLT cases.In OLT group 28 patients (70％)suffered from early posttransplant renal dysfunction,among them 11 patients needed dialysis,whilst there were 2 (16.7％ ) patients who needed dialysis in CLKT group (P ＜0.01 ).The posttransplant mortality in OLT group was 40％ ( n =16),significantly higher than that in CLKT ( 16.7％,n =2) ( P ＜ 0.01 ).In OLT group,9 cases developed severe renal failure and died.No one died of renal failure in CLKT group.ConclusionsThe prognosis is more favorable to perform CLKT in patients who suffered from severe hepatitis B with chronic renal dysfunction before transplantation.

Background and purpose: Vascular endothelial growth factor (VEGF) is an important proangiogenic factor, and Helicobacter pylori (H. pylori) infection-induced gastric over-expression of VEGF is an important factor of gastric cancer growth and metastasis, but its expression mechanism is not clear. Cyclooxygenase-2 (COX-2) is a rapid response protein, which is closely related to the occurrence and development of gastric cancer. Our study was to investigate the effect of COX-2 on H. pylori-induced VEGF expression in human gastric cancer cells, and to reveal part of the mechanism of gastric cancer growth and metastasis promoted by H. pylori infection. Methods:The expression ofVEGF mRNA in human gastric epithelial cells (MKN45) infected by standard H. pylori NCTC 11637 and the expression of COX-2 protein were evaluated by real-time fluorogenic quantitative polymerase chain reaction (RFQ-PCR) and assayed by Western blot. After inhibiting COX-2 expression with COX-2 specific inhibitor NS398 (50 μmol/L), VEGF mRNA expression induced by H. pylori in human gastric cancer MKN45 cells was evaluated by RFQ-PCR. Results: H. pylori significantly stimulated the expression ofVEGF mRNA in MKN45 cell line. Compared with control MKN45 cells; VEGF mRNA had 2.33 fold up-regulation after 6 h (P<0.05); and had 5.69 and 5.04 fold upregulation respectively after 12 and 24 h (P<0.01).When MKN45 cells were infected with H. pylori for 24 h, COX-2 protein expression also increased significantly (P<0.01), and after inhibiting the COX-2 expression with COX-2 specific inhibitor NS398, H. pylori-induced VEGF mRNA expression was significantly reduced. Conclusion: H. pylori could induce the expression of COX-2 and VEGF in human gastric cancer cells, and could enhance VEGF expression by COX-2 pathway, which might be one of the important mechanisms of gastric cancer growth and metastasis promoted by H. pylori infection.

Objective To investigate the morphology and relationships with the adjacent structures in the pineal region on the thin sections and to provide anatomic data for imaging diagnosis and surgical treatment of diseases in this region. Methods By CT and MRI examination, one normal head specimen was selected for this study. Using the computerized freezing milling technique, the specimen was sliced from anterior to posterior. The in vivo MR images were obtained from ten normal Chinese male adult volunteers using a 3.0 T GE scanner. The base lines of the sectioning and the MR scan were perpendicular to the AC-PC line. Then primary sections were contrasted with the corresponding MR images. Results By the appearance of the pineal peduncle and the disappearance of the pineal gland, the pineal region could be divided into three parts from anterior to posterior, and the shape changed from an inverted triangle to a trapezoid and a triangle gradually. The first interspace was getting wider in the anterior and middle parts of the pineal region, while in the posterior part of the pineal region, it was getting narrower and disappeared finally. From anterior to posterior, the bilateral internal cerebral veins were always in the midline of the pineal region and descended gradually.Conclusion By the computerized freezing milling technique, the anatomic details and adjacent relationships of the pineal region could be exhibited clearly in the thin serial sections, which could help the imaging diagnosis and surgical treatments for minute diseases in this region.

Objective To investigate the risk factors of slow coronary flow (SCF) phenomenon; To study the prognosis of SCF patients and analyze the high risk factors of adverse events by follow-up.Methods 17930 patients were analyzed retrospectively who had undergone routine coronary angiography because of suspected coronary artery disease at TEDA International Cardiovascular Hospital from January 2006 to December 2010.By Thrombolysis in myocardial infarction Frame Count method,236 patients with normal coronary artery but slow coronary flow were enrolled in the SCF group and 240 patients with normal coronary artery and normal coronary flow (40-50patients per year) were enrolled in the control group.After that,the risk factors leading to SCF were analyzed by the multivariate logistic regression analysis and all patients were followed up from March 2012 to April 2012 to know about the incidence of adverse events (acute coronary syndrome,malignant arrhythmia and sudden cardiac death) and the high risk factors leading to the adverse events.Results (1) Compared to the patients in the control group,the patients in SCF group have higher percentage of male (76.69％ vs.42.08％,P =0.000) 、rate of smokers (58.48％ vs.27.50％,P =0.000) 、BMI (26.78 ±3.75 vs.26.13 ±3.20,P =0.043) 、serum uric acid (344.90 ± 86.18 vs.304.43 ±76.44,P =0.000) 、serum creatinine (68.27 ± 15.10 vs.60.92 ± 13.17,P =0.000)、triglyceride (1.85 ± 1.23 vs.1.65 ± 0.81,P =0.037) but younger age and lower high density lipoprotein cholesterol (1.14 ± 0.28 vs.1.19 ± 0.30,P =0.048).(2) By multivariate logistic regression analysis,male,smoking status,hiah BMI and serum uric acid are all independent factors for SCF.(3) The SCF phenomenon noted in lvessel,2 vessels and 3 vessels accounted for 7.29％,26.04％,66.67％,respectively.(4) During the follow-up,2 patients with malignant arrhythmia and 1 patients with ACS were found in SCF group,no sudden cardiac death took place.None of the adverse events happened in the control group.Conclusions Younger male smokers are prone to have SCF,high BMI and serum uric acid are also independent factors for SCF; The SCF phenomenon is most common in three coronary arteries.Both malignant arrhythmia and acute coronary syndrome took place in the SCF group in the follow-up.