Objective To explore the clinical significance of the serum Epstein-Barr virus determined nuclear antigen 1 (EBNA1)/latent membrane protein 1 (LMP1) in patients with extranodal NK/T-cell lymphoma,nasal type (ENKL).Methods The serum EBNA1 and LMP1 were detected by realtime PCR in 36 ENKL patients hospitalized in Beijing Tongren Hospital from August 2010 to August 2013.Twenty healthy volunteers were recruited as controls.Results The median serum EBNA1 was 1.9 × 104 (ranged from 0 to 11.0 × 104) copies/μl in ENKL patients and 8.0 (ranged from 0 to 43.8) copies/μl in healthy volunteers.The median serum LMP1 was 3.9 × 103 (ranged from 118.3 to 24.0 × 103) copies/μl in ENKL patients and 3.3 (ranged from 0 to 33.3) copies/μl in healthy volunteers.Both EBNA1 and LMP1 were higher in ENKL patients than healthy volunteers (all P ＜ 0.01).The median EBNA1 and LMP1 in ENKL patients posttreatment were 1.0 × 103 (ranged from 0 to 2.0 × 103) copies/μl and 300.8(ranged from 0 to 825.7) copies/μl respectively,which were both significantly decreased than pretreatment (all P ＜ 0.05).The EBNA1 and LMP1 were decreased in effective treatment group versus ineffective treatment group (P ＜0.05).The serum EBNA1 and LMP1 were positively correlated with lactic dehydrogenase (LDH) level (r =0.364,0.546 ; P =0.040,0.012).Conclusions (1) The measurement of EBNA1/LMP1 may be useful in evaluating the therapeutic effect.(2)The serum EBNA1/LMP1 may reflect the tumor load in ENKL patients.

Objective We reported previously that single nucleotide polymorphisms SNP) + 11G ＞ A in intron 3 of the human urate transporter 1 (hURAT1) gene are associated with hyperuncaemia in Han Chinese.The aim of the present study was to evaluate the effect of the variants on hURAT1 function.Methods The wild-type,mutant-type hURAT1 and exon 5-null hURAT1 were constructed,and respectively microinjected into the zebrafish embryo yolks.The subcellular localization of different genotypes of hURAT1 was detected by confocal laser scanning microscope.Results Compared with wild type,the mutant recombinant plasmid transcribed two types of mRNA spliceosome,the wild type and the exon 5-null type.The hURAT1 wild type protein was prominent localized on cell membrane,while the mutant type and exon 5-null hURAT1 proteins were distributed uniform in the cytoplasm but not on the cell membrane.Conclusion The hURAT1 variant + 11 G ＞ A resulted in an alternative splicing of hURAT1 mRNA-exon 5-null type.Its protein product exhibited a different subcellular localization compared with that of wild type.

Objective To observe the effects of action observation therapy based on mirror neuron theory on upper-extremity motor function and performance in activities of daily living(ADL) after stroke.Methods Eightyone stroke patients were randomly assigned to an observational group (41 cases) or a control group (40cases).Both groups received conventional rehabilitation,and the observational group also received action observation therapy for 16 weeks,10 times per week.Upper-extremity motor function and ADL performance were assessed before treatment using the Fugl-Meyer assessment (FMA) and the Barthel index (BI) and then again after 4,8 and 16 weeks of treatment.Results The average FMA scores and BI scores in the observational group at the 4th week (32.50 ± 9.32 and 67.41 ± 16.81),the 8th week (36.35 ± 8.32 and 78.74 ± 15.63) and the 16 th week (41.32 ± 13.45 and 93.85 ± 13.45) had increased significantly compared with the pre-treatment assessment and were significantly better than at the same time point for the control group (P ＜ 0.05).Conclusion Action observation therapy based on mirror neuron theory can promote the recovery of upper-extremity motor function and ADL performance after stroke.

Objective To survey the epidemiological situation of asthma in remission stage in Liaoning province,and provide evidence for preventing and treating asthma.Methods 800 patients of asthma in the remission stage were investigated through the questionnaire investigation.Results Onset age of asthma in Liaoning province was 30～40 years old.The sex ratio between male and female was 1 ∶ 1.34.The number of staff was the highest (25.75％).Most of the course of asthma was 1～5 years (33.50％).The number of patients who often receive treatments was 59 (7.38％)and the number of patients with allergy history was 531 (66.38％).Conclusion Prevention,management and treatment of asthma should be strengthened.

Objective:To evaluate the effect of semiconductor lasers irradiation after routine root canal preparation on root cannal seal.Methods:60 Single-rooted freshly extracted human teeth were randomly divided into 6 groups(n=10).The crowns were removed at the cementoenamel junction and the roots were endodontically prepared with conventional methods.The roots in groups A and B were irradiated with 1 W semiconductor laser for 20 s,in group C and D were ultrasonically washed for 1 min,in group E and F without any treatment were used as the controls.Then all the roots were filled by vertical condensation of warm gutta-percha.The root cannal seal was evaluated with microleakage measurement.The data was analyzed by ANOVA.The teeth of group B,D and F were sectioned and examined under scanning electron microscope(SEM).Results:The microleakage(mm) of group A,C and E was 1.70±0.82,2.02±0.40 and 4.56±2.72 respectively(A vs E,P<0.01;C vs E,P<0.05;A vs C,P>0.05).SEM observation showed the melting,narrowness or closure of most dentinal tubules in group B,past and/or gutta-percha in the most dentinal tubules of group D.Conclusion:Semiconductor laser irradiation prior to root cannal filling can promote the effects of cannal seal.

The development and wide application of assisted reproductive techniques(ART) help many couples suffered from infertility and/or sterility to get baby.Meanwhile,the usage of ART led to much ethic problem.We,hence,investigate the strategies to deal with the ethic problem in ART correctly.

Objective To assess the cli ni cal usefulness of dual-modality positron emission tomographic (PET)-computed t omographic (CT) imaging in pulmonary lesions. Methods Fo rty-nine patients with pulmonary lesions examined with ?~2 test. Results There were 50 primary lesions in 49 patients. Accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predict ive value (NPV) were 90.0%, 95.2%, 62.5%, 93.0%, and 71.4%, respectively wi th PET-CT, 74.0%, 76.2%, 62.5%, 91.4%, and 33.3%, respectively with CT. There was significant differences between them (P0.05). Conclusion PET-C T has an important clinical value in differentiating benign lesion from malignan cy and staging in lung cancer.

Objective To explore the effects of down regulation of osteopontin(OPN)on the bio- logical behavior of MKN28 and SGC7901 cell lines.Methods OPN siRNA was designed according to the relevant literature and was transfected into the two cell lines.Fluorescent labeling was used to test the transfected efficiency.The down-regulation of OPN protein was measured by Western blot.Real- time PCR was used to test the ratio and time difference of down-regulation of OPN mRNA after siRNA transfection.The biological changes before and after OPN siRNA transfected into these two cell lines were tested by flow cytometry(to test cell cycle and apoptosis)and MTT method(to test the prolifera- tion for the consecutive seven days)and the difference between OPN siRNA transfected or non-transfect- ed cells was compared using mixed model.The capability of moving and invasion of cancer cells were tested by Transwell method and analyzed by t-test.Results The transfected efficiency of OPN siRNA were more than 90% in the two cell lines.OPN mRNA down-regulated to 47% at the 72th hour in SGC7901,while 40% at the 48th hour in MKN28.The expression of OPN protein was both down- regulated after siRNA transfection in the two cell lines.The proliferation decreased after transfected with OPN siRNA both in MKN28 andSGC7901(P

Objective To study the design and fabricating method, biomechanical effect and practicablity of the orthosis for patients suffering from large femoral bone defect and leg length discrepancy and study the effect of the orthosis on patients' equilibrium, walking function and gait. Methods By four stages we finally made ischial weight bearing orthosis with prosthetic feet, and then analysed its biomechanical effect and efficiency, evaluated balance and walking function of patients.Results The orthosis, according with principle of biomechanics, realized patients' wish of walking without crutch. The energy consumption and balanced capacity of patients wearing orthosis were much better while walking distance parameters came close to normal. Conclusion Ischial weight bearing orthosis with prosthetic feet can help patients reconstruct walking function, therefore can be recommended.

Objective To investigate the value of integrin αvβ3 targeted microSPECT/CT imaging with 99 Tcm-3P4-RGD2 as a radiotracer in tumor anti-angiogenesis therapy .Methods Animal models bearing glioma and prostate cancer xenografts were established by subcutaneously injecting tumor cells U87MG and PC-3 in nude mice.Anti-angiogensis therapy with Avastin was administered via intraperitoneal injection when the tumor diameter reached 6 to 7 mm while saline was served as control group . MicroSPECT/CT imaging was performed with 99 Tcm-3P4-RGD2 as radiotracer one day before and 3, 5, 10, 15 days after Avastin administration .Tumor volume and tumor uptake of 99 Tcm-3P4-RGD2 , expressed as percentage of injected dose (%ID) or %ID per gram (%ID/g) were measured and calculated based on microSPECT/CT.Mice basic condition was monitored and tumor xenograft was harvested in one tumor bearing nude mouse after its sacrifice at each imaging time point .Results Tumor volume of U87MG glioma in the administration group was significantly smaller than that of non-administration control group at 10 d after Avastin adminstration ( t=5.81, P<0.05), while no significance was observed between the administration group and its control group of PC-3 tumor (P >0.05).The uptake of 99Tcm-3P4-RGD2 (%ID/g) in U87MG group was higher than that in PC-3 group before Avastin administration ( t=10.48, P<0.05), and it decreased to a value less than control ( t =3.26, P <0.05) at 3 d after Avastin administration and continually reduced at longer time after administration .PC-3 tumor had less uptake of 99 Tcm-3P4-RGD2 in both Avastin administration group and its control group .The pathologic results revealed on that the decrease of tumor integrin β3 expression in U87MG treatment group was mainly on the endothelial cells of the neovessel .Linear relationship was verified between tumor uptake (%ID/g ) and integrin β3 expression (y=0.499 1x-0.243 8, R2 =0.811 7).Conclusions Complete inhibition of integrin is demonstrated early after Avastin administration .99 Tcm-3P4-RGD2 microSPECT/CT imaging, assessing the expression level of integrin αvβ3 level by quantification of tumor uptake of 99 Tcm-3P4-RGD2 , is probably an important method to reflect the early therapeutic effect of tumor anti -angiogensis .