Objective To search for triterpene glycoside with new structure. Methods We studied the sea cucumber Colochirous anceps belonging to the family cucumariidea with many chromatography methods and found a new sulfated triterpene glycoside, which structure was established by a combination of spectroscopic analysis (IR, UV, ESI-MS and 2D-NMR), chemical transformations and other chemical evidence. Results and Conclusion The new sulfated triterpene glycoside was isolated and named Colochiroside A (1) .

Objective To evaluate the efficacy of percutaneous transluminal septal myocardial ablation (PTSMA) and septal myectomy (SM) for treatment of hypertrophic obstructive cardiomyopathy.Methods We searched all clinical controlled trials of PTSMA and SM in treatment of hypertrophic obstructive cardiomyopathy in Cochrane Library,PubMed,Web of Science,Wanfang Database and CNKI update to August,2012.The selected studies in Chinese and English were used for Meta-analysis with software RevMan 5.0.Results Five studies including 286 cases (PTSMA:149,SM:137) were included in the study.Left ventricular outflow tract pressure was significantly reduced by SM treatment compared with PTSMA (OR =9.07,95％ CI:0.96-17.18,P =0.030).There were no significant differences in interventricular septum thickness (OR =1.15,95％ CI:-0.79-3.10,P =0.240),left atrial diameter (OR =1.95,95％ CI:-0.16-4.07,P =0.070),left ventricular end-diastolic (OR =0.70,95％ CI:-0.79-2.19,P =0.360),end systolic diameter (OR =1.14,95 ％ CI:-1.65-3.93,P =0.420),degree of symptom improvement (chest pain:OR =1.07,95 ％ CI:0.35-3.23,P =0.910;syncope:OR =0.32,95％ CI:0.08-1.23,P =0.100),and postoperative mortality (OR =1.63,95％CI:0.46-5.76,P =0.450) between PTSMA and SM treatment; but the rates of pacemaker implantation (OR =5.91,95％ CI:2.04-17.11,P =0.001) and reintervention treatment (OR =6.62,95％CI:1.20-36.62,P=0.030) in patients with PTMSA were significantly higher than those with SM.Conclusions There is no evidence to indicate that PTSMA can completely replace SM,as an alternative choice the therapy can be used according to left ventricular out flow tract pressure,symptoms,anatomy of target vessel and other conditions.

Objective To systematically evaluate the effectiveness and safety of renal sympathetic denervation (RSD) for treatment of patients with resistant hypertension.Methods English and Chinese literatures of controlled clinical trials on RSD in treatment of resistant hypertension were searched from the Cochrane Library,PubMed,Web of Science,Wanfang Database and CNKI up to February 2013.Metaanalysis was performed with the selected studies by using software Rev.Man 5.0.Results Seven studies involving 354 cases with RSD and 146 controls were included for analysis.Compared with control group,RSD significantly lower both systolic and diastolic blood pressure in patients with resistant hypertension (systolic,1 month:MD =-18.04,95％ CI:-19.94--16.14,P ＜0.01; 3 months:MD =0.01,95％CI:-28.10--17.98,P＜0.01; 6 months:MD=-25.59,95％CI:-34.08--17.11,P＜0.01; diastolic,1 month:MD=-7.53,95％ CI:-8.60--6.45,P＜0.01; 3 months:MD =0.01,95％CI:-12.5--4.47,P ＜ 0.01; 6 months:MD =-10.54,95％ CI:-16.44--4.63,P =0.000 5).In addition,there was no significant difference in adverse reactions between RSD treatment group and control group (OR =1.13,95 ％ CI:0.34-3.76,P =0.84).Conclusions Renal sympathetic denervation can effectively reduce blood pressure in patients with resistant hypertension 1-6 months postoperatively,without increase of adverse reactions.The long-term efficacy and safety need to be further observed.

Objective To investigate Ureaplasma urealyticum in cervical specimens of gynecologic check-up population and female sex workers(FSW)and its biovars and serotypes.Methods The gynecologic check-up patients and female sex workers were screened using Uu liquid selective medium.The positive cases were then divided into biovars and serotypes by the means of PCR.Results Ninety-eight FSW and164gyne-cologic check-up patients were investigated.In the FSW group,89cases(90.8%)were positive in culture,in-cluding biovar164cases(71.9%),biovar1+27cases(7.9%),biovar218cases(20.2%).In71biovar1positive cases,biovar1+2and co-infection of serotypes of biovar1were defined as mixed infection.Infection with single serotype of biovar1was defined as simple infection.So in71biovar1positive cases of FSW group,there were17mixed infections(23.9%)and54simple infections(76.1%).Simple infections were then subdivided into serotypes,including serotype117cases(31.5%),serotype322cases(40.7%),and serotype615cases(27.8%).In gynecologic check-up group,104cases(63.4%)were culture positive,in-cluding biovar197cases(93.3%),biovar27cases(6.7%).In97biovar1positive cases,there were11mixed infections(11.3%)and86simple infections(88.7%).In86simple infections,there were serotype122cases(25.6%),serotype337cases(43.0%),and serotype627cases(31.4%).Conclusions The posi-tive rate of Uu in FSW is higher than that of gynecologic check-up population(P

0.05); in with ser um condition, the transfection efficiency in Dosper group was significant hi gher than that in Lipofectamine group (P

Objective To construct the retroviral vector inserted SV40 large T antigen gene and transfect it into rat hepatocytes, analyze the status of SV40 large T antigen gene expression in rat hepatocytes, and to establish important basis for clinical hepatocytes transplanation. Methods Retroviral vector inserted SV40 large T antigen gene was(constructed) by DNA recombinant techniques in vitro, then the combinant vector was determined with enzyme(digestion) and sequencing and was transfected into the PA317 cell lines by liposome mediation and screened(anti-G4)18 positive clones. The viral titer was determined with the NIH3T3. After transfected into separated and purified rat primary hepatocytes, the SV40 large T antigen gene expression was detected by PCR and immunohistochemical (methods). Results (1)SV40 large T antigen gene fragment was inserted into retroviral vector in sense orientation. (2)The titer of pseudovirion packed by PA317 cell lines was 1.3?10~6CFU/ml. (3)SV40LT antigen gene was(integrated) into rat primary hepatocytes and its expression in transfected cells at 24 hour was higher than 96 hour (P

Objective: To observe the short-term effects of electroacupuncture at different acupoints on patients with hemiplegia after cerebral infarction. Methods: Patients with cerebral infarction were randomly allocated into a group of electroacupuncture nerve trunk and a group nerve trunk or routine acupoints, respectively, once a day, for 14 d. Results: Electroacupuncture at nerve trunk had better effects than at routine acupoints. The short-term improvement of electroencephalogram had significant differences (P＜0.05). Conclusion: Electroacupuncture at the nerve trunk could improve the neurologic impairment and brain function, and it has a better result than routine electroacupuncture.

Objective: To study retrovirus (RV)-mediated transduction of gastric carcinoma cells with the herpes simplex virus thymidine kinase (HSV-tk) gene and the subsequent treatment with ganciclovir(GCV). Methods: The TK gene was transfected into human gastric carcinoma cell line MKN28 using HSV-TK that packed with PA317 cell, the sensitivity of MKN28TK cells to GCV was examined in vitro. Results: The retroviral-mediated HSV-TK gene can be transfected to MKN28 cells. The growth rate of MKN28 cells transfected with HSV-TK gene did not change. MKN28TK cells became significantly sensitive to GCV and had bystander effect. Conclusion: Transfection of gastric carcinoma with HSV-TK has higher transfection efficiency. MKN28TK cells are significantly sensitive to GCV.

Objective To review our experience in correction of pectus excavatum.by Nuss procedure without thoracoscopic assistance.Methods 412 patients with pectus excavatum were surgically corrected using Nuss technique without thoracoscopic assistance.There were 329 boys and 83 girls with average age of 7 years and 8 months ( range from 2 years and 8 months to 28 yeats and 5 months).The bars were removed after surgery in 102 patients.Results The operation in all patients had been performed successfully without any severe complications The average time of the operation was 40 minutes.The average blood lose during operation was ( 10 ±2) ml.Conclusion Nuss procedure without thoracoscopic assistance is safety and effective.It could be minimize the trauma and shorter operating time.

BACKGROUND:At present, the main research fields about coronary stents are the whole degradation biological materials with high biocompatibility and drug control ed release systems.
OBJECTIVE: To evaluate the safety after the two novel biodegradable stents implanted in coronary arteries in porcine models.
METHODS:The normal ful y biodegradable stents were made up of the poly-L-lactide and the antiproliferative drugs paclitaxel, and the novel biodegradable stents were added in amorphic calcium phosphate at the basis of normal biodegradable stents. (1) Five normal ful y biodegradable stents were randomly implanted into the coronary arteries of five porcines, and five novel biodegradable stents were randomly implanted into the coronary arteries of the remaining five porcines by coronary angiography. The blood biochemistry and C-reactive protein levels were measured pre-operation and at 28 days after operation. Coronary angiography was utilized to observe the lumen unobstructed at 28 days after surgery. (2) Under a microscope, seven normal ful y biodegradable stents and seven novel biodegradable stents were implanted into right external iliac arteries of 14 rabbits. Blood urea nitrogen and creatinine levels were measured before surgery and at 28 days after operation.
RESULTS AND CONCLUSION:At 28 days after operation, there were no significant changes in porcine glutamic-pyruvic transaminase, aspartate aminotransferase, triacylglycerol, total cholesterol, low density lipoprotein and C-reactive protein levels compared with that before operation, but urea nitrogen and creatinine levels were significantly higher than that before operation (P<0.05). The result of coronary angiography showed that no in-stent thrombosis or stenosis was detected in either group. There was no significant difference in urea nitrogen and creatinine levels in both groups. These results suggested that it is safe and compatible after the two novel biodegradable stents implanted in coronary arteries of porcine models, and the stents had good histocompatibility.