Objective To explore the clinical effect of local prophylactic application of methotrexate(MTX) in laparoscopic linear salpingostomy. Methods The data of 102 women with confirmed unruptured tubal pregnancy and desire to conceive were collected.They were divided into two groups: the study group(local application of MTX in the operation,n=51) and the control group(without application of MTX,n=51).The demographic data,the incidence of persistent ectopic pregnancy(PEP)postoperation,and the hysterosalpingography(HSG) 3 months(postoperation) were analysed,and the side effects of the study group were observed. Results There was 1 case of PEP in the study group and 9 cases in the control group(2.0% vs 17.6%,P0.05).There were no obvious side effects such as nausea,vomit and dental ulcer in the study group. Conclusion Patients who were treated with local MTX injection during the laparoscopic linear salpingostomy present less incidence of PEP with no obvious side effects.

Objective To evaluate the value of echocardiography in patients with isolated anomalous origin of right pulmonary artery from ascending aorta. Methods The eehoeardiographie results of five patients with isolated anomalous origin of right pulmonary artery from ascending aorta were reviewed retrospectively. Results Severe pulmonary hypertension occurred in all the patients,besides accompanied with patent duetus arterious, no other congenital malformations combined. Three patients underwent operation. Patent ductus arterious was missed in one patient's diagnosis. Another patient was missed isolated anomalous origin of right pulmonary artery from ascending aorta in several echoeardiographic examinations, once misdiagnosed as complete transposition of the great arteries. Conclusions There are many anatomic and hemodynamic similarities in patients with isolated anomalous origin of right pulmonary artery from ascending aorta. Grasping their common charaeters and exploring multi-position and multi-section are helpful to make correct diagnosis.

Objective:To investigate the mechanism of indoleamine 2,3-dioxygenase(IDO)in HepG2 cells contributing to tumor immune escape.Methods:T-lymphocyte and HepG2 cell were cocultured,and 1-methyl-tryptophan(1-MT)was added to make an intervening experiment.The expression of IDO mRNA in HepG2 cell cocultured with T-lymphocyte was detected by RT-PCR;the apoptosis rate of HepG2 cell cocultured with T-lymphocyte was analyzed by flow cytometer;The cytotoxicity of T-lymphocyte against HepG2 cell was examined by MTT assay.Results:In combine reaction system,the expression of IDO mRNA was strongly induced in HepG2 cell cocultured with T-lymphocyte and faintly induced when cultured with 1-MT;the earlier apoptosis rate of HepG2 cell in control group and experiment group(1-MT:1.25 mmol/l,2.5 mmol/l,5mmol/l)was respectively(3.48?0.34)%,(7.82?0.41)%,(18.62?0.42)%,(25.32?0.40)%(P

Objective To study the effects of gantry rotation time on image quality in 64-slice spiral CT. Methods Using the same CT technique and body mode as those used for 64-slice spiral CT, delta phantom was firstly layed on the isocenter, then scanned and reconstructed with SOMATOM Sensation 64-slice spiral CT. Slice sensitivity profile(SSP) was measured from which modulation transfer function (MTF) were got by Fourier transfer. The Catphan500 phantom was layed on the table, then scanned and reconstructed with SOMATOM Sensation 64-slice spiral CT. The maximum linepair and minimum size of the targets visualized. Results The MTF curve was nearly overlapped on 0.5 s and 1.0 s gantry rotation time, the values of 5% MTF were 11.3 LP/cm and 11.9 LP/cm. Their spatial resolution and low contrast resolution were completely identical.Conclusion The image quality is no distinction on 0.5 s group and 1.0 s group of gantry rotation time. In order to shorten the scan time and eliminate the breath defect, we suggest that the 0.5 s gantry rotation time be used routinely at body spiral scan mode.

Objective To study the clinical outcome of breast conserving treatment of breast ductal carcinoma in situ(DCIS).Methods The data of 62 patients with pathologically proven DCIS who underwent breast conserving operation and adjuvant radiotherapy were retrospectively compared with 62 concurrent cases of stageⅠ or Ⅱ infiltrating ducatl carcinoma who received breast conserving operation and adjuvant readotherapy.Results The recurrence rate in DCIS cases was 6.4%(4/62),among them,3 cases belonged to comedo type;the recurrence rate in early infiltrating type of ductal breast carcinoma was 19.3%(11/62)(P

AIM: To investigate the effect of natural medicinal monomer elemene (Ele) on apoptosis of lens epithelial cells (LEC) and its the cellular and molecular mechanism in vitro. METHODS: The bovine LEC were cultured with Ele and used to observe the ultrastructure changes under transmission electron microscope and to detect DNA content and mitochondrial transmenbrane potential (??m) changes by flow cytometry. RESULTS: The typical morphological changes of LEC apoptosis in Ele group were observed under transmission electron microscope, such as chromatin condensation and aggregation at the nuclear periphery, and nuclear fragmentation as well. The DNA content of LEC in Ele group decreased and showed time-dependent. It was significant lower than that in control group (P

Apoptosis,a form of cell death,has generated considerable interest in recent years.Much progress has been made on the apoptosis induced by natural drgus,including component or mixture of plant,animal,mineral or marine materials,This review discusses some of the natural drugs that induce apoptosis and the possible mechanisms.

Recombinant PCR applies to fulfill gene recombination by PCR thermal reaction.Over the twenty years,it has branched into three characteristic strategies:splicing by overlapping extension(SOE),jumping polymerase chain reaction(JPCR)and DNA shuffling.Recently,the technique aimed with exploiting natural source of different allele genes is developing up on simplification of experimental procedure,on trap for mutation and variation,and on highthroughput screening with technology of surface display and fluorescent probe.The recombinant PCR is increasesing value in broad range from biological basic research to bioengineering study.

This paper employed UPLC-Electrospray Ionization /Quadrupole-Time of Flight-Mass /Mass Spectrometry( UPLC-ESI/Q-TOF-MS/MS) to analyze the chemical constituents in the stems of Nelumbo nucifera. The stems of N. nucifera were extracted with 75% methanol, and we applied an Agilent Zorbax SB-Aq column (2.1 mm x 100 mm, 1.8 μm) to UPLC analysis with water methanol-water( containing 0.05% formic acid) in gradient as mobile phase. The eluates were then detected by ESI-Q-TOF-MS/MS. Results indicated that 22 benzylisoquinoline alkaloids were indendified. Among them, one alkaloid may be a new compound and a component was found in the Lotus for the first time. We fully identify the composition of the Lotus stems for the first time, Which could provides theoretical foundation for further study and utilization of the medicinal resources.
Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; chemistry ; Molecular Structure ; Nelumbo ; chemistry ; Plant Stems ; chemistry ; Tandem Mass Spectrometry ; methods

Objective To understand the comments for the essential drug system by doctors at township health centers in Nantong's six counties and to discuss the effect of implementing the essential drug system to different ownership systems.Methods The survey was made with stratified clusters random sampling method to select township health centers.Questionnaires were filled out by doctors,and leaders of the health bureau and township health centers were interviewed.Results After the implementation of the essential drug system,94.6％of the doctors found that the number of laboratory examinations increased in Rugao,Rudong and Haian.23.2％of the doctors in Tongzhou,Qidong and Haimen found that enthusiasm for work increased.Conclusion The compensation mechanism should be perfected and the financial subsidies should be paid in time.Supervision and management should be strengthened and the grassroots need for medicine be ensured.The skills training should be enhanced and the medical service ability be improved.