Aiming at the shortcomings of the traditional nuclear medicine teaching model and attempting to adapt to the needs of the development of clinical nuclear medicine,we changed teaching methods,strengthened practice teaching,performed online learning,introduced the self-made teaching materials,enriched the teaching contents,proposed the concept of comparative imaging and reformed on examination method.These measures greatly improved students' interests in learning and clinical thinking ability and helped students understand and master the theoretical knowledge of medicine.

Objective To investigate the TcpA gene sequence and analyze the characteristics of O 139 epidemic strains.Methods PCR was performed to detect the O 139 VC in the bacteria sample.The positive sample was sequenced and analysed.Results PCR products of one strain in the positive sample were sequenced.The gene sequences showed 100% nucleotide homology to O 139 strains adn Eltor strains 96.0%.Conclusion The present study indicates that O 139 VC and O1EVC in Pingxing area are genetically nearest in genetic relation.The study has significance in the diagnose and treatment of Vibrio cholerae in Pingxiang area.

Objective To simulate the solution drought stress conditions with polyethylene glycol (PEG) 6000 for study on the seed germination of Cassia occidentalis.Methods The seed of C.occidentalis was treated with 5% and 10% PEG 6000,respectively,then the germination rate,the activity of superoxide dismutase (SOD),peroxidase (POD),and content of malondialdehyde (MDA) were measured.Results Compared with the same period of the control,soaking with 5% PEG 6000 for 5 h could increase the activity of SOD and POD,decrease the content of MDA.PEG Pretreatment could decrease free radical accumulation and make cell membrane system less damaged in the course of absorbing water in seed.Conclusion Soaking with 5% PEG 6000 for 5 h could increase the seed germination rate of C.occidentalis.

Objective To investigate the necessity of clamping the indwelling catheters before removal in patients with cervical cancer postoperatively. Methods A total of 198 cases of patients with cervical cancer after radical hysterectomy were divided into the study group (70 cases) and the control group (128 cases) randomly according to operation time. In the study group the catheters were clamped intermittently by patients 2 days before removal, while in the control group the catheters were removed without clamping. The rate of recatheterization, urinary tract infection, as well as the residual urinary volume were compared between groups. Results There were no significant differences in the rate of urinary tract infection and recatheterization between the two groups (P>0.05). The residual urinary volume was significantly higher in the study group than that in the control group ( χ2=10.293, P=0.016). Conclusions There may be no positive effect of training the bladder function by clamping the indwelling catheters before its removal in patients after radical hysterectomy, besides, it can not change the risk of recatheterization and can increase the residual urine in the bladder 24 hours after removal of the catheter.

Objective To investigate the effect of adenovirus-medicated gene therpy with vascular endothelial growth factor(VEGF)delivered into the subdermal space to treat compromised skin flap in the rat.Methods Thir- ty sprague-dawley rats weighing 350～400g were used in this study.The rats was randomly divided into three groups of ten rats each.A dorsal flap(8cm?2cm)in full thickness with the pedicale located at the leve of the iliaccrest was designed,each,animal received recipient bed subfascial injections of adenovirus encoding VEGF(Ad-VEGF)or green fluorescent protein(Ad-GFP)as treatment control.Another set of animals(n = 10)received NG was designated as control.The flap were elevated as originally designated and sutured back to its bed.The survival rate of the flap was evaluated on day seven after operation.Results The survival rates of the flap in Ad-VEGF group increased signifi- cantly as compared with those of the Ad-GFP group(P

OBJECTIVE To understand the drug-resistant status of Acinetobacter baumanii and provide scientific basis for infection treatment.METHODS Eight multidrug-resistant A.baumannii(MDR-AB) strains isolated from nosocomial inpatients in intensive care unit(ICU) were collected in May 2007 and tested for drug sensitivity and MIC determination as well.We typed A.baumannii isolates with pulsed-field gel electrophoresis(PFGE) to determine whether they derived from the same clone.RESULTS Four isolates from nosocomial inpatients were resistant to multiple antibiotics including carbapenem.The PFGE types identified from eight isolates were same.All A.baumannii isolates are closely related.CONCLUSIONS The prevalence of nosocomial infection is due to transmission of the same strains among the patients in ICU.This finding highly suggests that isolate 1 was the source of this nosocomial infection and the problem of hand hygiene maybe the main transmission route.

Objective To investigate the effects of heme oxygenase-1 (HO-1) transduced by cell penetrating peptide PEP-1 on renal ischemia/reperfusion (I/R) injury in rats.Methods Eighteen male Sprague-Dawley rats,aged 7-9 weeks,weighing 210-260 g,were randomly divided into 3 groups (n =6 each):sham operation group (group S),renal I/R injury group (group I/R) and fusion protein PEP-1/HO-I + I/R group (group HO).I/R injury was produced by occluding bilateral renal arteries for 45 min followed by reperfusion for 6 h.The fusion protein PEP-1/HO-1 was injected via the left iliac vein 30 min prior to ischemia in group HO.Bilateral renal arteries were only exposed but not occluded in group C.Blood samples were collected from the right common carotid artery at 6 h of reperfusion for determination of serum blood urea nitrogen (BUN) and creatinine (Cr) concentrations.The malondialdehyde (MDA) content,superoxide dismutase (SOD) activity and HO-1 expression in renal tissues were measured.Results Compared with group S,the levels of MDA,serum BUN and Cr were significantly increased,the SOD activity was decreased,and HO-1 expression was up-regulated in groups I/R and HO (P ＜0.05).Compared with group I/R,the levels of MDA,serum BUN and Cr were significantly decreased,the SOD activity was increased,and HO-1 expression was up-regulated in group HO (P ＜ 0.05).Conclusion HO-1 protein can be successfully transduced into renal tissues by PEP-1 and transduced HO-1 protein reduces renal I/R injury by inhibiting lipid peroxidation response.

Objective To study the angiogenesis in serous ovarian neoplasms. Methods Immunohistochemical method was used to examine microvessei density (MVD) and the expressions of vascular endothelial growth factor (VEGF) in 76 cases of serous ovarian neoplasm. The relationship between MVD and VEGF were investigated. Results MVD in the tissues of cystadenoma, bordline cystadenoma and cystadenocarcinoma were 7.8±2.4, 17.5±3.3 and 27.6±7.5; VEGF expressions were (16.1±3.9)%, (36.7±14.2)%, (52.3±22.8)%; the differences were significant respectively. Of cystadenocarcinoma grade 1, grade 2 and grade 3, MVD were 18.3+3.4, 24.2±3.1, and 32.3±6.4, VEGF expressions were (30.9±16.2)%, (48.0±18.4) % and (62.1±21.3) %, the differences were significant respectively. Of FIGO stage Ⅲ～Ⅳ and stage Ⅰ～Ⅱ, MVD were 28.9±4.7 and 22.0±4.7, VEGF expressions were (55.1±22.9) % and (40.18±18.0) %, the differences were significant respectively. There was significant positive correlation between VEGF expression and MVD. Conclusion Angiogenesis is very important in the development of serous ovarian neoplasms.

Objective To study the influence of different anticoagulant tube of blood for blood plasma total homocysteine (tHcy) . Methods Six healthy subjects were selected, then the fasting venous blood samples were collected with EDTA-2k tube,sodium citrate tube and lithium heparin tube, respectively. The blood samples were kept under different conditions. The concentrations of tHcy were determined by quantitative HPLC method and the data were analyzed using SPSS17.0 software. Results Under the conditions of 4℃placed for 2 h, 4 h, 7 h, and- 20 ℃ placed for 1 d, 3 d, 5 d after separating plasma, the concentrations of plasma tHcy in different anticoagulant tubes were no statistical difference. In addition, after placing the whole blood at 4℃for 2 h, 4 h, 7 h, the concentrations of plasma tHcy of separated plasma in different anticoagulant tubes were no statistical differences. Conclusion There are no significant differences in determination of the concentration of plasma tHcy when using EDTA-2k tube,sodium citrate tube and lithium heparin tube sampling blood.

Objective Study the anti-tumor effects in vivo of AMH-D on S-180 cell lines, the synergistic effects of AMH-D and cyclophosphamide,and investigate the way and its strength of the effect. Provide the basis for the development of anti-cancer drug. Methods Kunming mice were transplanted with S-180 tumor cells subcutaneously in the right armpit. Intraperitoneal injection was done after randomization on the next day. Mice were killed on the eleventh day, and tumors were stripped and weighed. The tumor weight was used as indicator for analysis and evaluation. Results The results showed that AMH-D could effectively inhibit the growth of S180 cells transplanted tumor. The tumor inhibition rate was 50.45%at the dose of 150 mg/kg, with a dose-effect relationship. There were no obvious impacts on the growth of the weight of mice. The results showed that AMH-D had a synergistic effect combined with cyclophosphamide within a certain dose. Conclusion Fungus extract AMH-D has a great effect on anti-tumor in vivo of S180 cells transplanted tumor, and has a synergistic effect combined with cyclophosphamide within a certain dose.