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.

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 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 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.

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 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

Different varieties of Terminalia chebula Retz. were identified by DNA finger prints, andat the same time, some problems encountered during the application of RAPD for the identification ofTCM were studied. The polymorphic features of DNA finger prints of different species were compared.Results of the study showed that they were differently related in heredity which can provide a basis for thedifferentiation of one species from the other. Means for the solution of problems arised during RAPD ap-plication were suggested. It was concluded that RAPD is an effective method to identify T. chebula from itsconfusable varieties.

Objective To investigate the experience of laparoscopic complete mesocolic excision ( CME) for colon cancer. Methods There were102 patients,of which 68 cases with colon cancer were performed laparoscopic CME,34 cases were treated by traditional surgery. The 2 groups were reviewed retrospectively. Results As compared with the traditional group,the operation time,time of first flatus,hospital stay in the CME group increased. The postoperative suction drainage was decreased in CME group. The CME group had less blood loss and more mean lymph nodes clearance than the traditional group. The complication incidences had no significant differences between 2 groups. Conclusion Laparoscopic CME for colon cancer,with the advantages of less tumor spreading and more thoroughly lymph node dissection,is worthy of clinical application.

Objective To investigate the nutritional status of elderly inpatients with benign orthopedic diseases and to assess its relationship with clinical outcomes.Methods Nutritional Risk Screening 2002 ( NRS 2002) was used to prospectively investigate undernutrition and nutritional risk in elderly patients hospitalized between April 1 and May 31, 2012 in Beijing Hospital for benign orthopedic diseases.Associations between nu-tritional status and clinical outcomes were analyzed.Results A total of 520 patients were included, with a mean age of (75 ±7.09) years.The mean body mass index (BMI) was (23.20 ±3.83) kg/m2, mean dominant-hand grip strength was (16.87 ±19.19) kg, mean mid-upper arm circumference was (25.62 ±3.81) cm, mean calf circumference was (31.92 ±4.02) cm.Compared with patients aged 65-79 years, patients≥80 years showed significantly lower hand grip strength [ (13.58 ±15.92) kg vs.(18.48 ±20.42) kg, P=0.004].All the pa-tients completed NRS 2002, which showed that 9.31%of the patients had undernutrition (BMI≤18.5 kg/m2), and 45.19%had nutritional risk (NRS 2002 score≥3).Compared with patients aged 65-79 years, patients≥80 years had significantly higher incidence of undernutrition (13.97% vs.7.21%, P=0.024) and nutritional risk (52.38%vs.41.76%, P=0.024), higher incidence of infectious complications in patients with nutritional risk (10.21%vs.5.26%, P=0.044), longer hospital stay [ (11.66 ±5.76) days vs.(10.42 ±4.37) days, P=0.016], and higher hospital expense [(20.28 ±1.811) thousand yuan vs.(16.39 ±1.362) thousand yuan, P=0.016].Conclusion Elderly patients hospitalized for benign orthopedic diseases have a high incidence of undernutrition and nutritional risk, which is associated with worse clinical outcomes.