Guidelines as Topic ; Hepatitis B, Chronic ; drug therapy ; prevention & control ; Humans

3 month),fluid sign was observed in 2(3 vertebrae,3/26,11.5%). Conclusion Fluid sign is characteristic in acute,subacute and early chronic trauma vertebral compression fracture for bone marrow edema,while it is rare in metastatic tumor vertebral compression fracture.It may paly a role in the differentiation of benign and malignant vertebral compression fracture.

Objective To evaluate the chnical features and prognosis of traumatic benign paroxysmal positional vertigo (t-BPPV).Methods By retrospectively analyzing the results of clinical features and prognosis in 19 patients with t-BPPV from January 2003 to September 2006,the results were compared with 51 patients with idiopathic benign paroxysmal positional vertigo (i-BPPV).Results The mean ages were (51.3?19.1) years in t-BPPV group and (63.2?16.5) years in i-BPPV group,the difference was significant (t=2.57,P0.05).The one-stage success rates were 62.5% in t-BPPV group and 83.6% in i-BPPV group,the difference was significant (x~2=4.94,P

OBJECTIVETo investigate the role of AIB1 gene in the development of esophageal squamous cell carcinoma (ESCC) and its clinicopathologic significance.

METHODSTwo tissue microarrays, including 203 cases of ESCC, were prepared. Fluorescence in-situ hybridization (FISH) and immunohistochemistry were performed to detect the amplification of AIB1 gene and expression of its encoded protein in ESCC. The results were correlated with various clinicopathologic parameters.

RESULTSIn the 203 cases of ESCC studied, FISH was successful in 115 cases. Amongst those, amplification/gain of AIB1 gene was observed in 15 cases, including high-level amplification in 5 cases (4.3%) and low-level gain in 10 cases (8.7%). As for immunohistochemical study, AIB1 protein was overexpressed in 94 cases of ESCC. There was a significant association of AIB1 overexpression and tumor staging. AIB1 was overexpressed in 66 of the 123 cases in advanced T stages (T3 to 4), compared with 25 of the 80 cases in early T stages (P = 0.008). Those cases with high-level amplification of AIB1 also showed overexpression of its encoded protein. On the other hand, 8 of the 10 cases with low-level gain of AIB1 showed protein overexpression. The remaining 41 of the 100 cases which did not have AIB1 gene amplification/gain demonstrated overexpression of AIB1 protein.

CONCLUSIONOverexpression of AIB1 protein caused by gene amplification/gain or other molecular mechanisms may play an important role in the development and/or progression of a subset of ESCC.

Carcinoma, Squamous Cell ; genetics ; pathology ; Cell Movement ; genetics ; Disease Progression ; Esophageal Neoplasms ; genetics ; pathology ; Female ; Gene Amplification ; Histone Acetyltransferases ; Humans ; Immunohistochemistry ; In Situ Hybridization, Fluorescence ; methods ; Lymphatic Metastasis ; pathology ; Male ; Neoplasm Staging ; Nuclear Receptor Coactivator 3 ; genetics ; metabolism ; Tumor Cells, Cultured

The plaque-forming characteristics of Newcastle disease viruses of chickens and geese source were compared on various cells. The result showed that there were obvious differences of plaque formation between F48E9 and NA-1 on Vero cells, chicken embryo fibroblast cells (CEF) and goose embryo fibroblast cells (GEF). The plaque-forming ability of NA-1 was higher than F48E9 on GEF, but lower than F48E9 on CEF. On Vero cells, the plaque-forming ability of NA-1 was slightly stronger than F48E9. It demonstrated that the plaque-forming characteristics were consistent with host tropism of virus. The morphogenesis of F48E9 and NA-1 on Vero cells was observed with transmission electron microscope. There were different replication processes between F48E9 and NA-1 on cells at different stages. NA-1 had stronger adaptability to host than F48E9 according to budding processes and envelope integrity.
Animals ; Cercopithecus aethiops ; Chick Embryo ; Chickens ; Geese ; Host-Pathogen Interactions ; Newcastle Disease ; virology ; Newcastle disease virus ; growth & development ; isolation & purification ; physiology ; ultrastructure ; Poultry Diseases ; virology ; Vero Cells ; Viral Plaque Assay

OBJECTIVETo evaluate the effects and mechanisms of the microscrew implant anchorage (MIA) combined with multi-loop edgewise arch wire (MEAW) technique in the treatment of skeletal Class II adult patients.

METHODSEleven adult patients with skeletal Class II high-angle malocclusions were treated with fixed appliances. The spaces were closed by the springs from the MIA to the hook on the archwire. The height of the hook and the direction of the force were different according to the intrusion and retraction of upper anterior teeth. In the finishing stage, MEAW technique and modified class II elastics (from the first loop of MEAW to the MIA) were used for final detailing. Cephalometric analysis was used to evaluate the effect after treatment.

RESULTSAfter treatment, the decrease of SNA, ANB and FMA were (2.86 +/- 1.05) degrees , (2.82 +/- 0.96) degrees and (2.95 +/- 1.35) degrees , respectively. The torque control of upper anterior teeth was good. The protrusion of lower incisors and the molar extrusion were avoided. The upper molars were moved distally by (3.00 +/- 2.19) mm.

CONCLUSIONSThe treatment of adult patients with skeletal Class II high angle malocclusions with MIA and MEAW technique could not only improve the facial esthetics but also avoided the common side effects of traditional Class II elastics.

Adult ; Female ; Humans ; Male ; Malocclusion, Angle Class II ; therapy ; Orthodontic Anchorage Procedures ; Orthodontic Wires ; Orthodontics, Corrective ; instrumentation ; methods ; Young Adult

China ; Hepatitis B, Chronic ; diagnosis ; therapy ; Humans ; Practice Guidelines as Topic

OBJECTIVETo evaluate the clinical value of iodine[131I] metuximab infusion combined with transcatheter arterial chemoembolization (TACE) for treating cases of post-intervention relapse of mid or advanced stage hepatocellular carcinoma (HCC).

METHODSSixty patients who were diagnosed between March 2009 and June 2010 with relapse of mid or advanced stage HCC following previous intervention with various standard clinical methods were recruited for study. The patients were randomly and equally divided into a control treatment group (CG; receiving TACE therapy alone) and an experimental treatment group (TG; receiving TACE combined with iodine [131I] metuximab injection). For all patients, licartin was first perfused into the tumor feeding artery and then the TACE procedure was performed 20 min later. Liver function markers and routine blood parameters, including alpha-fetoprotein (AFP) and clotting time, were examined at one week and one month after the treatment. Enhanced computed tomography or magnetic resonance imaging of the liver was performed at one month after treatment and thereafter on a bi-monthly follow-up schedule. The World Health Organization's tumor evaluation standard was used to assess the therapeutic effects in each group. Results of laboratory tests (pre- and post-treatment), reported complications, and side-effects were evaluated for their contributions to time of tumor progression (TTP) and survival time.

RESULTSPatients in the TG and CG groups had similar blood cell counts at pre-operative and 1-week postoperative time points. The TG group showed a significantly reduced level of AFP following treatment, but it was not significantly different from the level in the CG group. The TG group did however show significantly different levels of liver functional parameters (all P less than 0.05) and significantly higher TTP (4.84+/-4.11 vs. CG: 2.54+/-2.08 months; t = -2.13, P less than 0.05) and average survival time (7.05 vs. 5.15 months; x2 = 4.24, P = 0.039). The rates of partial response (PR), slight remission (MR), unchanged status (SD) and progressive disease (PD) were 16.7%, 37.5%, 25.0% and 20.8% in the TG group, and 8.7%, 17.4%, 21.7% and 52.2% in the CG group. The therapeutic effect rate (CR + PR + MR) and reaction rate (CR + PR + MR + SD) was significantly different between the two groups (P = 0.048). No serious adverse effects were reported.

CONCLUSIONTACE combined with iodine [131I] metuximab injection is a safe and effective procedure for prolonging the survival and TTP of patients with HCC relapse following prior therapeutic intervention.

Aged ; Antibodies, Monoclonal ; therapeutic use ; Carcinoma, Hepatocellular ; pathology ; therapy ; Chemoembolization, Therapeutic ; methods ; Female ; Humans ; Iodine Radioisotopes ; therapeutic use ; Liver Neoplasms ; pathology ; therapy ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; therapy ; Treatment Outcome

Objective To design and develop a multi-modality medical image fusion and evaluation simulation system to eliminate the deficiencies of the images by different technologies.Methods The system was developed with MATLAB 2014a development platform as well as MATLAB graphical user interface and image processing toolbox.Results Common methods were realized of multi-modality medical images,and the evaluation on seven objective indicators was implemented such as entropy,mutual information,cross entropy,mean,standard deviation and etc.Conclusion The system behaves well in interactivity,practicality and extensibility,and is of great significance for clinical diagnosis as well as teaching medical image processing in specialties of biomedical engineering,medical image technology and etc.[Chinese Medical Equipment

OBJECTIVETo investigate the role of bcl-6 gene rearrangement and bcl-6 expression in three molecular subgroups of diffuse large B-cell lymphoma (DLBCL) and its clinicopathological significance.

METHODSTissue microarray including 163 newly diagnosed DLBCL was constructed. Fluorescence in situ hybridization (FISH) was performed to detect the bcl-6 gene rearrangement and immunohistochemistry (EnVision method) was used to evaluate the expression of bcl-6, Ki-67, cyclin D3, Geminin and P27(Kip1) proteins in DLBCL. The association with clinicopathological features was analyzed.

RESULTSOne hundred and forty nine of 163 cases were further classified into three molecular subgroups: 40 cases of germinal center B-cell-like (GCB) type, 75 cases of activated non-germinal center B-cell-like (ABC) type, 34 cases of Type 3. Of these 149 cases, FISH for bcl-6 gene rearrangement was successful in 118 cases. bcl-6 gene rearrangement was observed in 33 of 118 (28.0%) cases. The bcl-6 gene rearrangement was more frequently seen in the ABC subgroup (22/62, 35.5%) than in GCB (6/31, 19.4%) and Type 3 subgroups (5/25, 20.0%, P=0.16). The correlation of bcl-6 gene rearrangement and expression of its encoded protein was further analyzed. Most of DLBCL (26/33, 78.8%) with bcl-6 gene rearrangement presented with overexpression of its encoded protein, which was higher than those without bcl-6 gene rearrangement (53/84, 62.4%, P=0.088). DLBCL with bcl-6 gene rearrangement (24/33, 72.7%) more frequently expressed cyclin D3, and had a higher proliferative activity than those without bcl-6 gene rearrangement (37/81, 45.7% , P=0.009). Twenty-nine of 33 (87.9%) cases of DLBCL with bcl-6 gene rearrangement presented with advanced stage (Ann Arbor stage III/IV), which was higher than those without bcl-6 gene rearrangement (65/85, 76.5% , P=0.167). Univariate Cox proportional hazards regression analysis showed that bcl-6 gene rearrangement was associated with an increased relative risk (at 1.842) of death in DLBCL cases compared with those without bcl-6 gene rearrangement.

CONCLUSIONOverexpression of bcl-6 protein caused by bcl-6 gene rearrangement may play some important roles in the development and/or progression of a subset of DLBCL.

B-Lymphocytes ; pathology ; Chromosomes, Human, Pair 14 ; Cyclin D3 ; genetics ; Gene Rearrangement ; Humans ; Immunohistochemistry ; In Situ Hybridization, Fluorescence ; Lymphoma, B-Cell ; diagnosis ; genetics ; Lymphoma, Large B-Cell, Diffuse ; diagnosis ; genetics ; metabolism ; pathology ; Neoplasm Staging ; Prognosis ; Proto-Oncogene Proteins c-bcl-6 ; genetics ; Translocation, Genetic