Objective To evaluate the therapeutic effect of 5-aminolevulinic acid mediated photody-namic therapy(ALA-PDT)in combination with recombinant human interferon alpha 2b ointment on superficial basal cell carcinoma(BCC)in elderly.Methods A total of 143 elderly patients with superficial BCC was ran-domly divided into PDT group(n=72 cases)and the surgical group(n=71 cases).The patients in the two groups were given the ALA-PDT in combination with IFN-α2b and routine surgical treatment respectively .The effica-cy after treatment was observed according to surgical wound area , lesion area , recurrence and security during 1 year follow-up.Results The results displayed the complete remission rate of lesion in the PDT group was sig-nificantly higher than that in the surgical group (81.94%vs.57.75%,P<0.05)after treatment,and the total ef-fective rate of BCC was also higher than that in the surgical group ,but no significant difference was identified in the two groups(91.66%vs.81.73%,P>0.05).During 1 year follow-up after treatment,the results showed the rate of recurrence in the PDT group was significantly lower than that in the surgical group (9.72% vs.22. 54%,P<0.05).Moreover,the mean wound area,the lesion area in the PDT group after treatment were also sig-nificantly smaller than that in the surgical group (P<0.05).Conclusion ALA-PDT in combination with IFN is an effective method with lower recurrence and minor trauma in the treatment of superficial basal cell carcino -ma.

By combining the teaching environment and taking the multimedia teaching system as the platform,we adopted the nimble utilization teaching method in physiology teaching process which fully aroused the students'enthusiasm in studies,and played the certain impetus role to students' quality enhancement.

Objective To prepare a new kind of biological agent initially,which will be used for emergent prevention or adjuvant therapy for paratyphia.Methods Paratyphia specific factor(PA-STF) was prepared in vivo and scanned with multi-wavelength using ultraviolet spectrophotometer.Then we determined the content of polypeptide and ribose with orcinol assay and modified Lowry assay respectively,followed by sterility test,pyrogen test and safety test.The immunological activity was assayed by immune protection test.Results The physico-chemical properties of PA-STF accorded with the criteria of Chinese Bioproduct Rules(2000 edition).In the immune protection test,the survival rate of mice was higher in the two experiment groups than in control group and NS group(P

Objective:To explore the methods and condition in which calcium ionorphore(CI) induces the CML cells to differentiate into dendritic cells(DCs).Methods:Mononuclear cells were separated from peripheral blood or bone marrow of CML patients whose WBC counts were more than 30?30~9 L~ -1 when samples were collected,then lymphocytes and monocytes were discarded by pouring out supernatant twice at different culture time point. Slightly adherent cells were cultured in RPMI1640 containing 10%FCS(Fetal calf serum),with or without CI(375 ng/ml) and GM-CSF(200 ng/ml) at 37℃,5%CO_2 humidified atmosphere for 96 h. To evaluate the effect of CI on inducing CML cells to differentiate into DCs,the phenotype of these cells were analyzed by flow cytometry and the morphology change was observed under inverted microscope and electron microscope. Better condition was also explored for DCs differentiation from CML cells under the effect of CI.Results:After 96 h of culture with CI and GM-CSF,the CML cells acquired morphology of mature DCs and significantly up-regulation of CD80,CD86,CD40,CD86 and HLA-DR.Conclusion:CML cells might acquire typical morphology and immunological phenotype of mature DCs when being cultured with CI and GM-CSF.

Objective To construct the prokaryotic expression vector of mouse CD25 extracellular domain and to express it in E coli.Methods Total RNA was isolated from splenocytes of Balb/c mice.The CD25 extracellular domain gene was amplified by RT-PCR and cloned into the PET-32a vector.A positive recombinant,PET-32a-CD25e,was identified by enzyme cleaving and sequencing before its expression in E.coli,and transferred into E.coli BL21(DE3) plysS for its expression.After purification with Ni+ resin and renaturation in vitro,a relative molecular mass(Mr) of the interesting protein was detected by SDS-PAGE and Wes-tern blotting.Effect of the purified interesting protein on the proliferation of splenocytes from T cell vaccine-immunized syngeneic mice was detected by MTT assay.Results The cloned CD25 extracellular domain gene was identified to be functional by sequencing and expression.The purified interesting protein could significantly induce the proliferation and IL-4 secretion of splenocytes from T cell vaccine-immunized mice in vitro.Conclusion Mouse CD25 extracellular domain gene can be successfully expressed in prokaryotic cells with biological activity,which lays a foundation for further relative studies.

Objective To evaluate the feasibility and efficacy of catheter-directed thrombolysis (CDT) for the treatment of non-acute (history ＞ 14 days) deep venous thrombosis (DVT) of the lower extremity.Methods Clinical data of 63 patients of non-acute DVT of lower extremities treated by CDT and adjunctive angioplasty and stenting from July 2009 to August 2013 were analyzed retrospectively.Venous recanalization was graded by a thrombus score based on pre-and post-treatment venography.Follow-up was performed by Doppler ultrasound and clinical evaluation.Results A total of 63 limbs with DVT with a mean symptom duration of (22 ± 5) days were treated by a continuous combined with pulse-spray infusion of urokinase of (1.21 ± 0.69) million IU/d for (74 ± 21) hours.Significant recanalization was achieved in 77％ (48 of 63) of the treated limbs.After thrombolysis,percutaneous angioplasty was done for 15 residual lesions and stent placement was performed in 11 iliac veins and 1 femoral vein.Minor bleeding occurred in 6 (10％) patients,no patients suffered from major bleeding or symptomatic pulmonary embolism.During follow up (mean:15 ±6 months),the veins were patent in 45 (71％) limbs.15 (24％) limbs developed mild post-thrombotic syndrome (PTS),and none had severe PTS.Conclusions CDT combined with adjunctive angioplasty and stenting is safe and effective for removal of the clot burden and for restoration of the venous flow in patients with non-acute lower extremity DVT.

Objective To investigate the relationship of c erbB2 with endocrine therapy and prognosis, to investigate the rapid and effective method to detect c erbB2 alteration in breast carcinoma(BC).Metheds Semi quantitative PCR was used to detect the amplification of c erbB2, and immunohistochemistry was used to detect the expression of protein of c erbB2. 58 cases of BC were followed up .Results There was significant relationship between c erbB2 protein overexpression and gene amplification(P

Objective To study the effect of target controlled infusion of etomidate and propofol during general anesthesia induction period on haemodynamics and stress by cerebral state index (CSI) in elderly hypertensive patients. Methods Forty ASAⅠor Ⅱelderly hypertensive patients undergoing selective laparoscopic cholecystectomy were randomly divided into two groups by random digits table method with 20 cases each: propofol group and etomidate group. CSI, mean arterial pressure (MAP), heart rate, blood glucose, concentration of plasma cortisol in the two groups were observed before induction of anesthesia, at 1 min before intubation, and at 1 min, 3 min and 5 min after intubation. Results The level of CSI, MAP, heart rate, blood glucose, cortisol between two groups at before induction of anesthesia had no significant difference (P>0.05).The levels of CSI in two groups at 1 min before intubation, and at 1 min, 3min after intubation were significantly lower than that at before induction of anesthesia, but compared with that at 1 min before tracheal intubation, CSI was significantly higher in two group at 1 min, and 3 min after intubation, and there was significant difference (P<0.05). The level of MAP in etomidate group was higher than that in propofol group at 1 min before intubation, and at 1 min , 3 min and 5 min after intubation: (85.9 ± 9.2) mmHg (1 mmHg = 0.133 kPa) vs. (70.8 ± 8.1) mmHg, (112.6 ± 9.8) mmHg vs. (90.6 ± 10.8) mmHg, (96.5 ± 8.2) mmHg vs. (86.5 ± 8.6) mmHg, (95.2 ± 8.3) mmHg vs. (80.6 ± 8.7) mmHg, and there was significant difference (P<0.05). The level of heart rate at 1 min before intubation in propofol group was lower than that before induction of anesthesia and that at the same period in etomidate group: (65.1 ± 6.2) bpm vs. (85.8 ± 10.2) bpm, (78.2 ± 6.7) bpm], and there was significant difference (P<0.05), while there was no significant differenc in the level of heart rate in etomidate group at each time point (P>0.05). Compared with before induction of anesthesia, the concentrations of blood glucose and cortisol at 1min before intubation in patients of the two groups decreased significantly, while glucose and cortisol concentrations at 1 min, 3 min and 5 min after intubation in two group significantly increased , and there was significant difference (P<0.05);cortisol concentration in etomidate group at 1 min before intubation and 1 min, 3 min, 5 min after intubation was significantly lower than that at the same period in propofol group:(260.6 ± 39.6) nmol/L vs. (290.2 ± 35.6) nmol/L, (380.3 ± 37.6) nmol/L vs.(410.8 ± 46.6) nmol/L, (361.2 ± 25.2) nmol/L vs. (392.6 ± 31.6) nmol/L, (352.3 ± 25.6) nmol/L vs. (370.3 ± 28.8) nmol/L, and there were significant differences (P < 0.05). Conclusions During induction of general anesthesia with the guidance of cerebral state index, target controlled infusion of etomidate has more stable hemodynamics, and also attenuates the stress response to tracheal intubation in elderly hypertensive patients.

Objective To explore the methods and mid-term results of interventional therapy for atherosclerotic occlusive disease of the superficial femoral artery(SFA).Methods From January 2005 to August 2008,Nineteen cases with 22 diseased lower limbs were admitted.According to Fontaine stage system,there were 6 stage Ⅱb limbs(moderate to severe intermittent claudication),8 stage Ⅲ limbs(rest pain),and 8 stage Ⅳ limbs(6 with ulcer and 2 with gangrene).The mean lesion length was 8.8 cm(5～13 cm).On the basis of the TransAtlantic Inter-Society Consensus(TASC)femoropopliteal classification,the lesions were classified as type B in 4 limbs,type C in 17,and D in 1.Follow up examinations with color duplex ultrasound and/or arteriography were carried out to determine the patency.The improvement of clinical symptoms after operation was analyzed.Results 17 limbs were revascularization successfully,2 limbs were turned to bypass operation,3 limbs were judged untreatable.The technical success rate is 77.3%,and the clinical improvement of symptoms was achieved in 100% of the 17 limbs on which the procedure was successful.The 17 limbs were followed up for a mean of 12.5 months(range 3-33 months).One patient died of cardia infarction one month postoperatively.SFA occlusion happened in 4 limbs.At one year postoperatively,the patency rate was 75%(13/17)after primary operation.Conclusions Primary endovascular treatment of SFA occlusion diseases is a safe,minimally invasive,and effective method.

Objective To evaluate a relationship between the nutritional risk and nutritional support in elderly hospitalized patients (aged ≥ 65 years) with gastrointestinal cancer,and to analyze the relationship between nutrition support and clinical outcomes.Methods Elderly hospitalized patients with gastrointestinal cancer were recruited from September 2009 to November 2011.Patients were screened using Nutritional Risk Screening 2002 (NRS 2002) on admission.Data were collected on the application of nutrition support,including complication rate,length of hospital stay and medical care costs.Results In 592 recruited patients,the malnutrition rate was 14.0％ (83/592) and the rate of a validated nutrition risk was 43.7％ (259/592).79.2％ of patients with nutritional risk received nutritional support while 62.2％of non-risk patients received nutritional support.The case numbers of paraenteral nutrition (PN),enteral nutrition(EN) and paraenteral nutrition + enteral nutrition(PN + EN) were 141,64 and 49 respectively,with the PN:EN ratio of 2.2 ∶ 1.The rate of postoperative complications,lengths of hospital stay and medical care cost were higher in patients with nutritional risk than without nutritional risk[complications 39.8 ％ (103/259) vs.20.4 ％ (68/333),lengths of hospital stay (17.1±4.8) d vs.(12.6±3.6) d,medical care cost(62 191.5 ±4 251.2) RMB vs.(46 792.3±3 115.4) RMB,x2 =26.55 or t=13.03,50.84 respectively,all P＜ 0.01].The average of the rate of postoperative complication [36.8 ％ (75/205) vs.45.9％ (20/44),x2 =19.38,P＜0.01],length of hospital stay [(15.6±3.5) d vs.(18.1±5.4) d,(12.1±4.8) d vs.(15.6±3.5) d,P＜0.05 or 0.01] and medical care cost[62843.3±3491.7) RMB vs.(68925.1± 4633.2) RMB,(53410.5±1954.3) RMBvs.(59857.3±3221.6) RMB,allP＜0.05 or0.01] were lower or shorter in elderly gastric cancer or colorectal cancer patients with nutritional support than in patients without nutritional support.Conclusions A considerable numbers of elderly hospitalized patients with gastrointestinal cancer are at nutritional risk.There is significant relationship between the nutritional risk and clinical outcome.Nutritional support for elderly hospitalized patients with nutritional risk may improve the clinical outcome.