Transient ischemic attack(TIA)is a common ischemic cerebrovascular disease,and the incidence of secondary ischemic stroke and cardiovascular events is very high.It needs to be assessed and managed urgently.The article presents the contents of emergency assessment of TIA,and emphasizes the importance of overall assessment.

Objective To evaluate the indications and clinical efficacy of the different surgical methods for lumbosacral tuberculosis.Methods 112 patients suffering from lumbosacral tuberculosis from January 1998 to October 2011 were reviewed retrospectively.Based on American Spinal Injury Association (ASIA) grading system,31 case was classified as grade C,32 as grade D and 49 as grade E.The affected locations were L5,S1 in 66 cases,L4-S1 in 32,and L5-S2in 14 cases.41 cases (posterior group) underwent posterior pedicle screw instrumentation,debridement and allograft; and 38 cases (anterior group) underwent one-stage anterolateral debridement plus allograft and internal fixation.33 (posterior-anterior group) cases experienced posterior pedicle screw instrumentation and anterior debridement and allograft.All cases underwent routine support and anti-tuberculosis treatment before and after operation.The change of erythrocyte sedimentation rate (ESR),signs of tuberculosis activity,graft fusion,neurological recovery and correction of deformity were evaluated in follow-up and compared among three groups.Results The average operating time in posterior,anterior and posterior-anterior group was (150±22) m in,(140± 18) min,(180± 1 8) min respectively.ESR and C-reactive protein (CRP) were recovered to normal 3 months post surgery.The quality of life total score of lumbosacral tuberculosis patients was very low (55.54 ± 9.23).After surgery and drug treatment,the total score and each dimension scores of the SF-36 were significantly improved.Postoperative ASIA classification and 1umbosacral angle were significantly improved.Tuberculosis recurrence occurred in three cases,fixation loosening in two cases,fixation fracture in one case,and all above cases were cured after revision surgery.The others all were cured and bone graft fusion was determined.Conclusion The quality of life of lumbosacral tuberculosis patients were impacted seriously,and which could be significantly improved with surgical intervention.According to the patient MRI,CT characteristics,surgical approach selection was based on lesion location.Effective internal fixation was based on the extent of damage in bone structure and anatomical characteristics.Following above principles,satisfactory clinical results could be achieved.

Objective To investigate the relationship of serum levels of macrophage migration inhibitory factor (MIF), matrix metallo-proteinase-9 (MMP-9), hypersensitive C-reactive protein (hs-CRP) with the severity of acute cerebral infarction (ACI). Methods 101 pa-tients with ACI were envolved and divided into 3 groups according to the scores of National Institute of Health Stroke Scale (NIHSS):mild group (group A, n=38, NIHSS score<4), moderate group (group B, n=36, NIHSS score 4-15) and severe group (group C, n=27, NIHSS score>15). Meanwhile, 44 non-ACI inpatients with atherosclerosis were included as control group (group D). Their serum MIF and MMP-9 were detected with ELISA, and hs-CRP with immunoturbidimety. Results The levels of serum MIF, MMP-9 and hs-CRP ranged from more to less as groups C, B, A and D (P<0.05). There was positive correlation of MIF with MMP-9 (r=0.301, P<0.01) and hs-CRP (r=0.309, P<0.001). Conclusion Serum MIF, MMP-9 and hs-CRP levels increased with the severity in ACI patients, which may be prediction of athero-sclerotic plaque instability.

OBJECTIVETo investigate whether bortezomib can enhance the sensitivity of human prostate cancer (PCa) cells to natural killer (NK) cell-mediated cytotoxicity, and whether it produces the same effect on different PCa cell lines.

METHODSWe treated androgen-dependent PCa LNCaP cells and androgen-independent PCa DU145 cells with bortezomib at the concentrations of 0, 5, 10, 15, 20 and 25 nmol/L for 24, 48 and 72 hours, and then detected the proliferation and apoptosis of the tumor cells by CCK-8 and Annexin V/PI, respectively.

RESULTSThe proliferation rates of the DU145 cells treated with 15, 20 and 25 nmol/L bortezomib were (82.79 +/-2.04)%, (73.59+/- 2.95)% and (74.16+/- 6. 16)% at 48 hours and (71.24+/- 5.30)%, (51.20+/- 2.91)% and (38.02+/- 2.67)% at 72 hours, and those of the LNCaP cells were (77.04+/- 7.74)% , (42.61 +/- 6.62)% and (23.85 +/-6.04)% at 48 hours and (36.45 +/-7.02)%, (14.94 +/-5.76)% and (11.65 +/-5. 87)% at 72 hours, both significantly inhibited as compared with the control group (P <0.05). At 24 hours, the apoptosis rates of the DU145 cells treated with 15, 20 and 25 nmol/L bortezomib were (14.41 +/- 1.32)% , (16.13 +/- 1.55)% and (14.48 +/- 1.42)% , and those of the LNCaP cells treated with 20 and 25 nmol/L bortezomib were (12.77 +/- 1.28)% and (14. 84 +/- 1.65)% , significantly higher than those of the control group (P <0.05) , and the DU145 cells showed an even higher sensitivity to bortezomib than the LNCaP cells. Bortezomib failed to sensitize these two cell lines to NK cell-mediated cytotoxicity in short-term assay, while long-term assay manifested that the apoptosis rates of DU145 and LNCaP cells after treated with 20 nmol/L bortezomib + NK cells were (41.83 +/- 5.06)% and (30.31 +/- 3.62)% , respectively, significantly higher

CONCLUSIONBortezomib enhances the sensitivity of than those after treated with either bortezomib or NK cells alone (P <0.05). PCa cells to NK cell-mediated cytotoxicity and adds to the effect of current cancer therapies, and it is more efficacious for androgen-independent prostate cancer.

Apoptosis ; drug effects ; Boronic Acids ; pharmacology ; Bortezomib ; Cell Line, Tumor ; Cytotoxicity, Immunologic ; drug effects ; Humans ; Killer Cells, Natural ; drug effects ; Male ; Prostatic Neoplasms ; pathology ; Pyrazines ; pharmacology

Objective:To observe the color change of tooth i nduced by hydrogen peroxide gel. Method:12 extracted teeth were randomly assigned to two groups (n=6) and treated with 350 g/L and 75 g/L hy drogen peroxide gel respectively. One of the 6 samples in each group was used as the control. The bleaching gel was placed onto the enamel surface of the sample s. In 350 g/L gel group digital photographs were taken just before,10 and 30 min after the process, in 75 g/L gel group digital photographs were taken before an d 1.5?N(N=0,1,2,3,4,5,6,7) hours after the process respectively. All photograph s were taken at the same illuminating conditions and photographic parameters wer e analyzed with Photoshop7.0 software. Results:10.5 h after trea tment in the 75 g/L gel group L *, a * and b * values on the teeth surface were in creased(+) or decreased(-) by +4.5,-1.4 and -0.5,those on the inner sections 2.7 ,-1.0 and -0.8,respectively. 30 min after treatment in the 350 g/L gel group L *, a * and b * values on the teeth surfaces were increased(+) or decreased (-) by +1.9,-0.6 and 0,those on the inner sections +0.4,-0.4 and -0.6,respectively. Conclusion:Effective bleaching effect may be obtained in 10~30 min b y 75 g/L or 350 g/L hydrogen peroxide gel on teeth surface and in inner dentin. 75 g/L hydrogen peroxide bleaching gel may produce more reliable and save effect than 350 g/L.

Objective To study normal imaging features of choroid fissure and to improve the ability of diagnosis of choroid fissureneuroepithelial cyst.Methods The MR manifestations of choroid fissure were studied by comparing general brain specimen with MR images of normal brains.The analysis of CT and MRI findings of choroid fissure neuroepithelial cysts in 14 cases were also conducted.Results The whole choroid fissure was clearly displayed as fissures full of cerebrospinal fluid on MRI.Cysts were shown round or ellapse foci with sharpmargins and homogeneous low density on CT or cerebrospinal fluid-like signal intensity on MRI.There was no enhanced contrast or nodramatic changes in follow-up studies.Conclusion The recognization of MR anatomy of choroid fissure and imaging manifestations ofchoroid fissure neuroepithelial cysts can improve the ability of diagnosis and differential diagnosis of cysts.

Objective To raise the etiological diagnostic rate of renal colic in remission period with intravenous urography.Methods High-dense intravenous urography with TV monitoring (HIVP-TV) was employed to detect the 48 cases,including 37 cases in remission and 11 cases in attack periods.Results There were signfiicantly differences in imaging time of obstractive sites of injured kidney and ureter between both remission and attack periods(P

Objective To analyze the related factors of local recurrence in patients with rectal cancer after Dixon operation. Methods A retrospective analysis of clinical data of 100 patients from September 2005 to September 2007 in our hospital by TME standard surgicai treatment of low rectal cancer was carried out. Results Of 100 patients, the pre-sacral recurrence rate was 10. 0%, with gender, age, tumor size, tunor invasion lumen circumference,depth of invasion,lymph node metastasis and Duke's stage has nothing to do with the gross type,histological type and lumen,peritoneal tumor cell shedding,and as an independent prognostic factor. Of 90 patients without local recurrence,the 5-year survival rate was 76. 0% ,haff of the survival of 62 months;10 cases of local recurrence,5-year survival rate was 5. 0%, half of the survival of 24 months, suggested that local recurrence in patients influenced the prognosis. Conclusion The low local recurrence of rectal cancer related factors were gross type,histological type and the intestine, peritoneal tumor cells shed, seriously affect the prognosis of patients with local recurrence.

Objective To investigate the genotype of HPV and L1 gene polymorphism of HPV subtype 6b in patients with condyloma acuminatum (CA) from Wenzhou region. Methods Gene chips were used to profile the genotype of HPV in tissue samples from 73 patients with CA. PCR was performed to amplify the L1 gene in 11 samples positive for HPV type 6 followed by sequencing. Results Of the 73 patients, 61 (83.56%) were positive for HPV DNA. Among the 61 HPV-positive patients, 93.44% were infected with single type of HPV, and 6.56% with mixed type of HPV. In patients infected with single type of HPV, type 11 predominated with a prevalence of 29.51% followed by HPV 6 (18.03%); in those infected with mixed type of HPV, 6and 11 were the most common genotypes. Besides, sequencing analysis revealed single nucleotide polymorphism at 6 sites of HPV 6b type L1 gene, and an A/T polymorphism at position -810 was present in all samples, which was considered to be a local mutation of HPV from Wenzhou region. Conclusions In Wenzhou region, HPV types 11 and 6 prevail in patients with CA, and multiple mutations are present in L1 gene of HPV 6b type.