Objective To study the significance of protein tyrosine phosphatase (SHP2)expression in bac-terial meningitis.Methods 90 rats were divided into meningitis group (72)and healthy controls (18)two groups based on the random number table,The SHP2 expression in rat brain tissue at different time points of meningitis group and healthy control group were tested by reverse transcription (RT)a PCR,Western blotting,immunohistochemical methods,then the relationship between SHP2 protein expression and tumor necrosis factor-α(TNF-α),white blood cell (WBC)counts were observed and analyzed.Results The cortical SHP2 mRNA expression of meningitis rat in-cluding (0.035 ±0.020),(0.200 ±0.049),(0.129 ±0.032)and (0.057 ±0.039),were significantly higher than those of the healthy control group (0.031 ±0.028)(F=12.74,P<0.05);the third periventricular SHP2 positive cells were significantly more than those of the healthy control group (χ2 =5.02,P<0.05);the correlation coefficient of cortical SHP2 protein expression and concentration of CSF TNF -α,the correlation coefficient of cortical SHP2 protein expression and WBC counts were respectively 0.08(P>0.05)and 0.77 (t=4.303,P<0.05).Conclusion SHP2 participates in pathophysiology of bacterial meningitis,the main role may be in suppressing inflammation and repairing inflammatory response,it can be used as a reference indicator of condition changes.

Objective To construct the lentiviral vector Lenti-miR-210-Luciferase, and to detect angiogenic factors HIF-1α and VEGF expression in hPDLSCs transduced by Lenti-miR-210-Luciferase. Methods hPDLSCs were iso-lated and cultured, and according to human miR-210 gene sequence(NC_000011. 9), its primer was designed and amplified through PCR. The PCR products of the target gene were connected to the vector pLVX-EGFP-3FLAG-EF1-Luc. To identify the plasmid, target gene PCR product and the purpose vector were digested by EcoRⅠand XbaⅠ. Lenti-miR-210-Luciferase ( the control group was Lenti-LacZ-Luciferase) was constructed using the LR re-combination system. After hPDLSCs was transduced by Lenti-miR-210-Luciferase, the analysis of HIF-1α and VEGF expression was done with qPCR and the immunohistochemistry examination. Results The results of plasmid sequencing and digestion confirmed that the vector Lenti-miR-210-Luciferase was successfully constructed. After Lenti-miR-210-Luciferase was transduced to hPDLSCs on 0, 1, 4, 7 and 14 d, the results of qPCR showed that the over-expression of HIF-1αand VEGF was detected on 4 d, and continued until 21 d. Immunohistochemical results showed that after hPDLSCs were transduced by Lenti-miR-210-Luciferase, hPDLSCs were positive for HIF-1α and VEGF antibody, and the control group was negative. Conclusion The Lenti-miR-210-Luciferase is successfully constructed, and miR-210 can promote hPDLSCs the differentiation of angiogenesis.

Objective An innovation of operative procedure with biological repair of ligaments for the treatment of acromioclavicular dislocation. Methods Based on the anatomy, physiology, and biomechanics, the operation was designed for restoring the stability of a completely dislocated acromioclavicular joint. Through bone holes drilled along the direction of coracoclavicular ligament fibers, the synthetic absorbable suture was used to rebuild the coracoclavicular ligament for vertical stability of the joint, and then a double loop suture was performed to rebuild acromioclavicular ligament and the capsule for horizontal stability. This biomechanical repair was simple, rapid procedure, and of less tissue trauma. The acromioclavicular joint was steadily fixed without any metallic imbedding, nor interference with joint surface. Results With 1－ 2.5 years follow up, 11 patients recovered with good healing, normal range of shoulder joint motion, and stable fixation. There was no need for secondary procedure to remove the sutures. The curative results of all patients were A degree based on the Karlsson s evaluation. There was no any complication. Conclusion The synthetic absorbable suture could be used with satisfaction for the repair of acromioclavicular dislocation. Compared with routine fixation with metallic material, the new kind of biofixation was not only effective, but also avoided the need of a second procedure for suture removal.

OBJECTIVE: To investigate the selections of radionucide and vehicle and the indications, contraindications, complications and cautions of radiation synovectomy in clinical applications; meanwhile, to provide valuable references for clinical application of radiation synovectomy.DATA SOURCES: Of 277 articles which have the word "radiation synovectomy" or "radiosynovectomy" were searched out from PubMed database without limitations.STUDY SELECTION: All the titles and most abstracts of the articles were reviewed. A total of 58 articles were selected by the standard of having close relations with radionucide, vehicle and radiation synovectomy. Then the full texts were searched in other available databases, especially in "OVID" and "ScienceDirect".DATA EXTRACTION: The last articles and articles published in authority journals were chosen for further read, and 41 articles were obtained.DATA SYNTHESIS: Recently, the hot topic of radionucide is detailed as follows: Firstly, selection of vehicle. Till now, silicate, citrate, Ca oxalate, ferric hydroxide macroaggregate (FHMA), hydroxyapatite (HA), polylactic acid (PLA), sulfur colloids, microspheres, etc. Have been the most widely used vehicles. The usage of a good vehicle is to control the size and stability of the radiopharmaceutical, and decrease its leakage from the joint. Secondly, it should contain radiopharmaceuticals of nuclein and vehicle. An ideal radiolabeled radiopharmaceutical for radiation synovectomy should meet the following requirements: ① it should be sufficiently small to be phagocytized, but not so small that it might leak from the joint before being phagocytized, the appropriate size range is usually considered to be from 2 to 10 μm; ② the binding between the radionuclide and the vehicle should be irreversible throughout the course of the radiotherapy, which, in turn, is determined by the physical half-life of the radionuclide; ③ the radiolabeled particles should be distributed homogeneously in the joint without initiating an inflammatory response; ④ the half-life of the vehicle should be longer than that of the nuclide it combines,and the vehicle should be biodegradable, so that it can be eliminated out of the body after therapy; ⑤ good stability and low cost are also very important features. Thirdly, Radiation synovectomy is an effective method to treat chronic arthritis.CONCLUSION: With careful nuclide and indication selection and correct operation, radiation synovectomy is a clinically useful, safe, and cost-effective outpatient procedure in the treatment for many kinds of joint disease.

Objective To assess the efficacy of surgical treatment and the prognostic factors predicting survival for patients with local recurrence of rectal cancer. Methods The clinical data of 43 rectal cancer patients who received reoperation at Beijing Cancer Hospital from November 1998 to April 2005 were retrospectively analyzed. The postoperative 5-year survival, incidence of complications, perioperative mortality were calculated. Postoperative survival was analyzed by Kaplan-Meier method and prognostic factors by univariate analysis and Cox proportional hazard regression model. Results Of all patients, 35 underwent radical resection, 8 underwent palliative resection or colostomy. The incidence of complications, perioperative mortality and postoperative 5-year survival were 26% (11/43), 2% (1/43) and 9% (4/43), respectively. Patients who received radical resec-tion, with primary tumor of TNM Ⅱ stage, with normal level of carcinoembryonic antigen, and with the time of recurrence within postoperative 24 months had better prognosis (χ~2 = 21.30, 14.17, 5.93, 5.53, P < 0.05). Modality of reoperation and TNM staging of primary tumor were the independent factors influcing the prognosis (χ~2 = 8.89, 6.96, P < 0.05). Conclusion Radical resection for patients with postoperative local recurrence of rectal cancer results in a favorable prognosis.

Rectal prolapse is a rare disease, has been attracting many surgeons to study it.Surgical treatment of rectal prolapse is currently more than 50 kinds, most of which are modifications of several basic modes treatment, depending on the doctor' s grasp on the patient anatomy.Currently comprehensive treatment of a variety of therapies is a more ideal way for the treatment of rectal prolapse.

Medical literature novelty assessment plays a unique role in the advances of medical sciences. The idea of precision medical literature novelty assessment was thus proposed according to the precision medicine program of army general hospitals, which has promoted the development of clinical medicine in our hospital by finding out the precision points of literature novelty followed by precisely retrieving.

Objective To investigate the medication advancement of gastrointestinal polyposis in patients with Peutz-Jeghers syndrome(PJS).Methods Literatures about the medication advancement on gastrointestinal polyposis of PJS were reviewed and analyzed.The recent development of targeting drugs,especially the data of cyclooxygenase-2 selective inhibitors and rapamycin,were emphatically summarized.Results With the deep investigation of PJS and application of selective drugs,the medication of gastrointestinal polyposis in cases of PJS has got more advancement.The extensive use of synthetic cyclooxygenase-2 inhibitors and rapamycin in clinic developed a new way to treat gastrointestinal polyposis of PJS.Conclusion The cyclooxygenase-2 selective inhibitors and rapamycin have the following features: noninvasive,high selectivity and good curative effects.They have splendid prospects in the clinical treatment of gastrointestinal polyposis in patients with PJS and are bring the treatment of gastrointestinal polyposis in cases of PJS into a targeting therapy phase.

The study includes 2 experiments. Experiment 1: 24 male weanling Wistar rats were divided into 3 groups, with 8 rats in each group:zinc-deficient group (ZD), pair-fed group (PF), zinc-sufficient group (ZS). The experiment term was 30 days, and the items observed were feed intake, body weight, serum zinc, tibia zinc, serum vitamin A and liver vitamin A. The results showed that Zn-deficient rats could not mobilize liver vitamin A into their blood normally. Experiment 2; 40 male weanling Wistar rats were raised with Zn-deficient feed for 30 days, then they were divided into 4 groups randomly, keeping 7 rats in each group:Zn-deficient group (ZD), Zn-treatment group I(ZT1), Zn-treatment group II(ZT2), Zn-treatment group III(ZT3), their daily Zn dosages were 0.63 umol, 1,89 umol, 3.80 umol respectively. The treatment lasted for 6 days. The results demonstrated that serum zinc and vitamin A concentrations of the 3 Zn-treated groups were much higher than that of ZD group. In contrast, their liver vitamin A concentrations were much lower than that of ZD group.