protrusion measured by ultrasound for diagnosing bladder outlet obstruction.Methods A literature search of medline (1966.1-2011.6),embase(1984.1-2011.6),CNKI (1994.1-2011.6) and WEIPU Data (1989.1-2011.6) from 1999 to 2009 was performed by two reviewers independently.QUADAS items was applicated to assess trial quality.Golden standard was BOOI measured by urodynamics (BOOI more than 40 indicates bladder outlet obstruction).Heterogenous studies and meta-analysis were conducted by Meta-Disc 1.4 software.Results Totally 6 studies was included at last,involving 682 subjects.No threshold effect was found,but there was heterogeneity due to other factors.The meta-analysis showed that the sensitivity was 70.8 ％,specificity was 87.6 ％,positive LR was 5.132,negative LR was 0.303,the diagnostic OR was 22.18,the area under SROC curve was 0.8723 and Q index was 0.8028.Conclusions Intravesical prostatic protrusion measured by ultrasound is a good index for diagnosing bladder outlet obstruction in patients with benign prostate hyperplasia when intravesical prostatic protrusion is equal or more than 10mm.

Objective To investigate the feasibility and superiority of video-assisted thoracic surgery (VATS) in the diagnosis and treatment of chest trauma feasibility and superiority.Methods 60 cases were randomly selected and divided into the observation group (n =30) and control group (n =30) by random number table.The observation group was treated with VATS and the control group was treated with traditional methods.Incision length,after the first three days of pain,blood transfusion,closed drainage time,drainage,postoperative hospital stay,postoperative day 7 1S forced expiratory volume (FEV1) and other related indicators were compared between the two groups.Results Incision length of the observation group was (7.41 ± 5.52) cm,which was significantly shorter than (18.62 ± 4.11) cm of the control group (t =7.54,P ＜ 0.05).Amount of blood transfusion and drainage of the observation group were (199.88 ± 23.00) mL and (199.52 ± 18.48) mL,which were significantly less than (465.67 ± 41.88) mL and (560.02 ± 44.98) mL of the control group (t =6.38,6.98,all P ＜ 0.05).In the observation group patients after the first three days VAS score was (3.61 ±0.20) points,lower than (6.01 ±0.25) points of the control group (t =6.64,P ＜ 0.05).Postoperative hospital stay was (6.50 ± 0.45) d,shorter than (11.33 ± 0.50) d of the control group(t =7.95,P ＜0.05).Conclusion VATS has the advantages of intuitive and strong,trauma,pain,faster recovery,shorter hospital stay,less closed thoracic drainage,fewer complications and so on in chest injury diagnosis and treatment.

ObjectiveTo evaluate the physicochemical properties and bicompatibility of carbon-nanotubes/hydroxypatite/chitosan scafflod for bone tissue engineering. MethodsMWCNT/n-HA/CS scaffolds wre generated by solution blending and freeze-drying technology.The morphology and composition of the scaffolds were analyzed by scanning electron microscopy, X-ray diffraction and Fourier transform infrared spectroscopy, after this, the results of which mixed CNTS in scaffolds were evaluated. The effects of MWCNT/n-HA/CS scaffolds on adherence and proliferation of rabbit bone marrow stroma cells were assessed by scaffolds surface seeding methods, and using scanning electron microscopy, MTT assay to observe their adhesion and proliferation on scaffolds.Results MWCNT/n-HA/CS scaffolds showed abundant homogeneous pores with (87.26％) porosity. 66％ fracture strength of the scafflod was improved by MWCNT,and porosity decreased by 3％. Conclusion MWCNT/n-HA/CS scaffold can be prepared with solution blending and freeze drying process, which has fair poriness, good mechanical strength and tissue compatibility and can be applied as a bone graft material.

Animals ; Base Sequence ; Gene Expression Regulation ; Humans ; MicroRNAs ; genetics ; metabolism ; Molecular Sequence Data ; RNA, Viral ; genetics ; Virus Diseases ; genetics ; metabolism ; virology ; Virus Physiological Phenomena ; Viruses ; genetics ; metabolism

Objective To compare the clinic effect of the locking compression plate (LCP) fixation and the anatomical plate in treatment of high-energy distal tibial fractures. Methods The study involved 42 patients with high-energy distal tibial fractures treated between May 2003 and May 2009. The anatomical plate group included 24 patients ( 16 males and 8 females, at average age of 39 years), of whom there were 13 patients with type A fractures, five with type B and six with type C according to the AO/ASIF classification. The LCP group included 18 patients ( 15 males and 3 females, at average age of 40 years), of whom there were 11 patients with type A fractures, three with type B and four with type C according to the AO/ASIF classification. All the patients were followed up for 8-17 months. Their functional and radiographic outcomes were collected. The operation time, intra-operative blood loss, X-ray exposure, bone healing time, post-operative complications and therapeutic effects were compared between both groups. Mazur's criteria was used to evaluate the function of the ankle. Results The LCP group was followed up for average 11.6 months and the anatomical plate group for average 14.2 months, which showed fracture healing in all the patients. The bone graft in the anatomical plate group was used more frequently than the LCP group, while the X-ray exposure in the LCP group was much more than that in the anatomical plate group. The operation time, incision size, blood loss, postoperative complications and radiographic bone healing time in the LCP group were significantly less than those in the anatomical plate group. Conclusions Both the LCP and anatomical plate are effective methods for the high energy distal tibial fractures. LCP has advantages of less trauma, quick fracture healing and less complications, is consistent with the biomechanics of internal fixation and hence is an ideal method for the treatment of the high-energy tibial fractures.

Objective To investigate the feasibility of Ad-hTGF-β1 transfected bone marrow mesenchymal stem cell(BMSCs) into chondrocytes differentiation and the change of TAZ mRNA. Methods Rats BMSCs were obtained and cultured by whole bone marrow method, and then the third-generation cells were seeded into cell culture plate, and divided into three groups:Ad-hTGF-β1 transfected group,Ad-EGFP transfected group and the control group. The control group was added in common medium without any treatment while the other two groups were respectively added in serum-free medium containing Ad-hTGF-β1 or that containing Ad-EGFP. Seven days later, real-time fluorescent quantitation PCR and Western blot were employed for detecting the expression of TGF-β1 ,while immunohistochemical and Western blot for the expression of collagen Ⅱ , and real-time fluorescent quantitation PCR for the expression of TAZ mRNA. Results Seven days after the transfection, real-time fluorescent quantitation PCR revealed that the average relative expression of TGF-β1 was:Ad-hTGF-β1 group 0.863, Ad-EGFP group 0.183, and the control group 0.180; The average relative expression of TAZ was:Ad-hTGF-β1 group 0.810, Ad-EGFP group 0.416, and the control group 0.366.The expression difference of TGF-β1 and TAZ were statistically significant (P ＜ 0.05). Western blot and immunohistochemical proved strong collagen Ⅱ expression in Ad-hTGF-β1 group while it was detected a little in the other two groups. Conclusion BMSCs could be successfully and stably induced into chondrocytes differentiation by Ad-hTGF-β1. Meanwhile, the mRNA of TAZ is up regulate during the differentiation,so it is suppose that TGF-β1 improve BMSCs into chondrocytes differentiation by TAZ.

Objective To investigate the choice of methods and time on the treatment of Gustilo type Ⅲ B and type ⅢC open tibia fractures by bone fixation and tissue flap repairing.Methods The clinic data of 136 cases of Gustilo Ⅲ B and Ⅲ C open tibia fractures were retrospectively studied.There were 102 males and 34 females,with average age of 34 years(range 14 to 68 years).Ninety-eight cases were classified as Gustilo type Ⅲ B and 38 cases were type Ⅲ C in degree.In all cases,one hundred and thirteen were treated with onestage external fixation,ninteen cases were treated with secondary bone fixation.Sixty-seven cases of all wounds were repaired by one-stage vascular pedicle skin flap.Seven wounds were repaired by one-stage free flaps with vascular anastomosis.Sixty-two cases were secondary repaired by different flaps after defect tissue under VSD (vacuum-sealing-drainage) treatment by 1 to several weeks,which contains 9 free skin graft,eleven muscle flaps based on posterior tibial artery perforator,thirteen flaps based on fibial artery perforator,fourteen gastrocnemius falps and 15 cross-leg flaps.Results Wound of all cases were healed wholly.Primary union occurred in 121 cases,twelve,cases healed after bone grafting for segmental bone defect.Three cases with delayed union healed after reoperation for infection that caused osteomyelitis and sinus tract.The period of bone healing was form 5 to 12 months.Conclusion The treatment of Gustilo Ⅲ B and Ⅲ C open tibia fractures by onestage or secondary bone fixation and tissue flap repairing get their advantages and disadvantages,but one-stage bone fixation and tissue flap repairing was better where appropriate.

Objective To study the state of erythrocyte immune function in neonates with hyperbilirubinemia,and analyze the influence of various clinical status on erythrocyte immune function.Methods Fifty-two neonates with hyperbilirubinemia were enrolled and 104 healthy neonates as the control group.The adherence rate of complement 3b-receptor on the surface of red blood cell(RBC-C3bRR) and the immune complex adherence rate of red blood cell(RBC-ICR) were detected with erythrocyte saccha-romycete rosettet test.Results 1.The level of RBC-C3bRR in neonates with hyperbilirubinemia was lower than that in control group,and the level of RBC-ICR in neonates with hyperbilirubinemia was higher than that of control group(Pa0.05).3.Comparing the neonates with unconjugated bilirubin of different concentrations,there were significant difference in RBC-ICR(Pa0.05).4.There were positive correlation between RBC-ICR and bilirubin,unconjugated bilirubin in the neonates(Pa0.05).Conclusion Erythrocyte immune function in neonates with hyperbilirubinemia is obviously lower than that of control group and it is influenced by the concentratron of bilirubin and the time of phototherapy.

Aim ToexploretheeffectsofnewdrugT-006 on improving learning and memory abilities in scopolamine-induced dementia mice and its possible mechanism.Methods 72maleKunmingmicewere randomly divided into six groups:normal control group,model group,donepezil treatment group,T -006 treatment group with different doses(1,3 and 10 mg·kg-1 ).All mice were treated by intragastric ad-ministration for 14 consecutive days. Learning and memory abilities were tested by a five-day Morris water maze trial from the 1 1 th day.the first 4 days of the five-day Morris water maze,the navigation test was performed,the last day of Morris water maze is the spatial probe test.During the navigation test, mice were intraperitoneally given 2 mg · kg-1 scopolamine 20 minutes before entering the water,while normal control group mice administrated with sterile saline in-stead.Mice were not given T-006 nor scopolamine in spatial probe test.After Morris water maze,all mice were sacrificed for hippocampus and cortex.The activi-ties of AchE and SOD and the levels of GSH and MDA in hippocampus and cortex were measured after tissue harvesting.Results Comparedwithmodelgroup,T-006 could obviously improve learning and memory abil-ities in scopolamine-induced mice, significantly in-crease the levels of SOD and GSH and decrease the levelsofMDAandAchE.Conclusion T-006can significantly improve cognitive abilities in scopolamine-induced dementia mice,and its relevant mechanism may be closely related to its antioxidative effect and the ability to decrease AchE level.

Objective To evaluate the value of preoperative ultrasonographic parameters in predicting the outcome of TURP.Methods A total of 202 patients with symptomatic benign prostatic hyperplasia (sBPH) entering our department for surgical therapy were prospectively recruited,with mean age of (65.5 ± 8.1) years,international prostate symptom score (IPSS) of 16.6 ± 8.1 and quality of life (QOL) score of 5 (3,6).Preoperative combined test of ultrasonography and urodynamics has found total prostate volume (TPV),transitional zone volume (TZV),transitional zone index (TZI),intravesical prostatic protrusion (IPP),resistive index (RI),postvoiding residue (PVR),detrusor wall index (DWT),ultrasonic estimation of bladder weight (UEBW) and maximum flow rate (Qmax) to be (75.0 ±38.5) ml,(49.9 ± 32.4) ml,0.59 ±0.14,(17.2 ±5.0) mm,0.63 ±0.12,(132.7 ±97.8)ml,(16.3 ±7.9)mm,(44.8 ± 7.1)g and (6.1 ± 6.0)ml/s respectively.A 6-monthsfollow-up after standard TURP were applied including re-measurement of IPSS,QOL score and Qmax.The patients were classified into 2 groups of effective and ineffective after the recovery being stratified into 4 levels of none,fair,good and excellent.The influence of preoperative ultrasonographic parameters on surgical outcome was analyzed by logistic regression and receiver operating characteristic (ROC) curve.Results The group of effective has 149 patients,with the preoperative TZI,IPP,RI,DWT and UEBW of 0.65 ± 0.27,(18.3 ± 3.1) mm,0.77 ± 0.18,(19.0 ± 5.0) mm and (46.6 ± 7.1) g,which were significantly higher than that of the group of ineffective (P ＜ 0.05) Lower RI,DWT and UEBW were found to be risk factors of unfavorable surgical efficacy (P ＜ 0.05) from multivariable analysis.The area under curve (AUC) of RI,DWT and UEBW in outcome prediction was 0.816,0.732 and 0.723 respectively from ROC curve,indicating the good predictive value of the 3 parameters with combined positive predictive value (PPV) of 96.3％.Conclusion RI,DWT and UEBW have favorable value in predicting TURP outcome.Measuring these parameters by preoperative ultrasonography might aid in determining the need for surgical intervention in sBPH patients.