Objective To explore the value of center vein catheter thoracostomy in the chemotherapy of malignant pleural effusion. Methods Carboplatin and ?-2b Interferon were infused into pleural cavity by implanted center vein catheter in the group observation (n=17). After repeated thoracocentesis, the same drugs were introduced into pleural cavity in the group control (n=29). At the end of the 1st, 3rd and 6th month after drug administration, follow-up was carried out to assess the response rates. Results At the end of the 1st, 3rd and 6th month after intrapleural therapies, the number of intrapleural therapies in the group observation was (2.2?1.9) times and in the group control (5.3?1.3)times, with statistically significant difference between the two groups (t=5.924, P=0.00). Numbers of complete remission (CR) in the group observation was 10 of 16, 11 of 16 and 10 of 15, respectively and in the group control 9 of 29, 11 of 29 and 5 of 19, respectively, producing significant difference (P=0.043, 0.050, 0.020, respectively). Overall response rates in the group observation were 87.5%, 87.5% and 80.0%, respectively, while in control were 62.5%, 68.7% and 66.7%, respectively, without significant difference (P=0.356, 0.114, 0.178, respectively). Compared with the control, long-term follow-up (six months) showed higher response rates in the group observation: 10 of 15 patients remained CR at 6th month after therapies. No significant difference was seen in respect to adverse effects(?2=2.491,P=0.114). Conclusions Intrapleural chemotherapy by center vein catheter may increase CR and decrease application times of Carboplatin and ?-2b Interferon in the treatment of malignant pleural effusion, with fewer side effects.

Objective To explore the effects of interstitial brachytherapy with permanent seed implants on peripheral blood cells, liver functions, renal functions, T cells subgroups and the activity of natural killer cells (NK). Methods Ultrsound-guided or intraoperative implants of radioactive seed 125I were used in 25 patients with pathologically diagnosed and ineradicable malignant tumors. Clinical data of peripheral blood cells, liver functions, renal functions, T cells subgroups and the activity of NK cells prior and after the treatment were compared. Results The white blood cells, hemoglobin and platelet prior the treatment were (6 3?2 2)?10 9/L, (122 7?17 3) g/L and (219 9?117 5)?10 9/L, respectively, while at the 1st and 3rd months after the treatment, these were (6 4?1 8)?10 9/L, (114 5?30 9)g/L, (191 5?59 6)?10 9/L, respectively and (6 1?1 2)?10 9/L, (116 3?16 0) g/L, (191 7?108 2)?10 9/L, respectively, without statistically significant differences ( F =1 893, 0 616, 0 596; P =0 072, 0 779, 0 762). In addition, no significant differences were found in values of ALT, AST, BUN, Cr, CK and CK-MB at different times ( F =1 861, 0 551, 1 740, 1 934, 0 412, 0 052; P =0 118, 0 737, 0 142, 0 105, 0 837, 0 998). The values of TB and DB in patients with pancreatic carcinoma obviously decreased within 1 month after the treatment. Interstitial brachytherapy had little effects on T-cell immunity (CD3, CD4 and CD8) and the activity of NK cells ( F =0 287, 0 520, 0 497, 1 101; P =0 752, 0 598, 0 612, 0 342). Conclusions Interstitial brachytherapy with permanent seed implants has no effects on vital organs and immunologic functions, being a safe and minimally invasive technique for cancer.

Objective To apply the urethral pressure profile(UPP)in patients with benign prostates hypertrophy(BPH).Methods 71 patients with BPH accepted the test of UPP.The UPP parameters were compared statistically with the ultrasonography finding.Results The maximum urethral pressure,maximum urethral closure pressure and prostatic urethral length in BPH were higher than normal(P<0.01).Conclusion The test of urethral pressure profile(UPP)is helpful for identifying the site of obstruction and degrees in BPH patients,although there are some limits.

Objective To investigate the effects and mechanisms of sulindac, a non-selective cyclooxygenase(COX)inhibitor, on the proliferation and apoptosis of colorectal cancer cell line HT-29.Methods HT-29 cells were treated with sulindac. MTT assay and flow cytometry were used to measure the proliferation and apoptosis respectively. The laser scanning microscope(LSM)and the fluorescence microscope were used to observe apoptosis of the cells, and the flow cytometry (FCM)analysis was used to observe the cell apoptosis and cell cycle. Results Sulindac inhibited the cells proliferation and induced apoptosis in a dose-and time-dependent manner. With the TUNEL staining and fluorescence microscope, we found that the apoptosis cell became brown. After the Annexin V/PI staining, we observed that the membrane of apoptosis cells became green with LSM; the nucleosidase became red or crocus. FCM showed that sulindac promoted apoptosis of the cells, made the stage of G0/G1 ceils significantly reduced. Conclusions Our results showed that sulindac may inhibit the proliferation and induced the apoptosis of colon cancer cell HT-29,and the mechanism may probably be related to cell cycle arrest.

Objective To study the effect of different approaches of Cage bone graft combined with pedicle screw fixation fusion in trea-ting lumbar spondylolisthesis. Methods From January 2011 to December 2012,120 patients with lumbar spondylolisthesis in our hospital were randomly divided into anterior lumbar interbody fusion (ALIF) group(n=40),postero lateral fusion (PLF) group(n=40) and posteri-or lunbar interbody fusion (PLIF) group(n=40). The related index and body’s function were observed. Results In PLIF group,the opera-tion time was(82. 3 ± 12. 1) h,intraoperative bleeding volume was (60. 3 ± 9. 5) mL,postoperative ambulation time was (5. 5 ± 0. 7) d, NRS score was(1. 5 ± 0. 2),ODI score 3,6,9,12 months after operation were respectively (24. 1 ± 3. 4),(19. 4 ± 3. 1),(13. 5 ± 2. 5), (9. 8 ± 1. 6),which was significantly lower than ALIF group and PLF group;the intervertebral height(9. 3 ± 1. 2)mm were significantly high-er than those of ALIF group and PLF group. Conclusion PLIF has positive clinical value in treating lumbar spondylolisthesis as it can re-duce the operation wound,promote postoperative recovery,and improve the long-term function of body.

Objective To construct human surfactant protein B (SP-B) gene promoter luciferase reporter plasmids and detect their transcriptional activities in H441 cells.Methods (1)The fragment of SP-B promoter (-218/+ 435 bp) was acquired from human genome DNA by polymerase chain reaction (PCR) amplification and then was inserted into pGM-T vector by the T4 DNA ligase.The vector was transfected into TOP10 E.coli.The positive clone was identified by DNA sequencing.The identified target SP-B promoter sequence was cloned into pGL3-basic vector to construct the recombinant vector pGL3-basic-SP-B-promoter and was identified by enzyme digestion and sequencing; (2)The pGL3-basic-SP-B-promoter vector was converted into pGL4.17-SP-B-promoter vector through enzyme digestion.The identified recombinant vectors and control plasmid pRL-TK were transfected into H441 cells by lipofectamine 2000,and luciferase assays was performed using the dual-luciferase reporter assay system.Results The sequences of SP-B promoter in the recombinant luciferase reporter plasmids were consistent with the one published on Genebank.The firefly/renilla luciferase activity ratio of pGL3-basic/pGL4.17-SP-B-promoter vector (2.8 ± 1.1,66.5±3.8) was significantly higher than pGL3-Basic,pGL4.17 control vector (0.2 ±0.1,4.3 ±0.4) with statistical significance (t =4.182,27.419,P =0.000),respectively.The SP-B promoter activity of pGL4.17-SP-B-promoter vector was significantly higher than pGL3-basic-SP-B-promoter vector (t =27.712,P =0.000).Conclusions The pGL3-basic/pGL4.17-SP-B-promoter vectors are successfully constructed with SP-B promoter activity in H441 cells and pGL4.17-SP-B-promoter vector is the better choice for further study with higher luciferase activity.

Objective To study the role of the transforming growth factor-β-activating kinase 1 (TAK1) poly-ubiquitination in radiation-induced NF-κB activation.Methods FLAG-TAK1 and HA-UbK63 plasmids were transiently transfected into HEK-293T cells.The radiation effect on TAK1 ubiquitination was detected by immunoprecipitation and Western blot,which was further confirmed in FLAG-TAK1 HeLa stable cell line.Results At 1 h after irradiation,Lys 63-1ink TAK1 ubiquitination was induced in the HEK-293T cells with plasmids transfection.This result was further confirmed by using a FLAG-TAK1 stably expressed HeLa cell line.Radiation-induced IKKs and p38 phosphorylation were greatly impaired in MEFs reconstituted with TAK1 K158R mutant compared to ones with wild-type TAK1.Conclusions Lys63-1inked TAK1 poly-ubiquitination at Lys-58 plays a key role in the process of radiation-induced NF-κB activation.

Objective To screen and identify the novel markers for renal cell carcinoma. Methods The renal cancer A498 cell line was used as the antigen and human normal renal cell line HK-2 was used as control for subtraction biopanning from a phage display peptide library at 37 ℃ The positive and specific binding clones were identified by cell-based ELISA and immunocytochemical staining, and the identified clones were sequenced. Thus the amino acid sequence was deduced and the peptide was synthesized. The peptide was identified by immunofluorescence. Results Through a cell-based ELISA, immunocytochemical staining, and immunofluorescence, the Phage ZT-2 and synthetic peptide ZT-2 were shown to specially bind to the A498. The affinity binding to A498 was the highest (A_(ZT-2)/A_(control) = 3. 15) among the peptides assayed. The optical density of ZT-2 in renal cancer tissue (0. 453±0. 123) was significantly higher than that in normal and inflammatory renal tissue (0. 148±0. 075)(P<0. 01). Conclusions A peptide ZT-2 which is specific binding to renal cancer cell line A498 had been selected from phage display peptide libraries. Therefore, it provides a potential tool for early diagnosis of renal cancer or targeted drug delivery in chemotherapy.

Objective To observe and study the late effects of intrauterine exposure to irradiation.Methods A 16-year-old girl,borne by a woman exposed to 60Co irradiation during the Xinzhou radiation accident 16 years ago underwent inquiry,general medical examination.Conventional chromosome aberration analysis and fluorescence in situ hybridization (FISH) were used to examine non-stability and stability chromosome aberrations,and China revised Wechsler Intelligence Scale for Children (C_WISC)was used to detect IQ level.Results Inquiry revealed no history of carcinoma and no family history of hereditary diseases.The girl often caught cold when she was a child,but she hadn' t any other diseases.Menarche occurred when she was 12 years old,and she had not suffered from dysmenorrhea.Her development of body frame constitution was normal.She could not carry out addition and subtraction,but she could make simple verbal communication,writing and even reciting text.The results of the routine lab examination were within the normal range.Unstable chromosome aberrations were not shown,and the chromosome translocation rate was 2.3%.The dose that induced the chromosome injury was deduced as 0.81 Gy.The biological dose of the radiation that she was exposed to was inferred to be 1.85 Gy when she was in ther mother's uterus.Ultrasonic sound showed nodular goiter and no malignant change.China's revised Wechsler Intelligence Scale for Children (C_WISC) test results showed that speech,operation and full-scale IQ was 51,50,and 46 respectively.The total intelligence was better than 0.01% ,and worse than 99.90% of the population.Conclusions Exposure in utero does not affect the body frame constitution development after birth of the fetus,but mental retardation is clear.No evidence of any tumor can be found for the children exposed to radiation before their birth.