Objective: To study the phenotypes of T cell in patients with Hashimoto thyrioditis (HT) and to analyze its relationship with the impairment of follicles, so as to provide evidence for clinical diagnosis and treatment. Methods: Totally 136 HT specimens were obtained by fine needle aspiration biopsy (FNAB) and were divided morphologically(L, P, O type). The serum parameters (TPOAb, TGAb, TSH) were tested, and 20 cases with nontoxic goiter were taken as control. Immunohistochemical assay was performed with 60 specimens and FCM (Flow cytometry) was used to study 23 specimens. The T cell infiltration and the distribution of CD3+, CD4+, and CD8+ T cells were compared between all types of HT tissues. The correlationship between the atrophic degree of follicle with T lymphocytes infiltration and phenotype was analyzed. Results: It was found that L type (n=58) and P type (n=28) had more serious follicle atrophy than that of O type (n=20) (P

Objective To probe into clinical value of real-time three-dimensional echocardiography (RT-3DE) in evaluating global and regional left ventricular function in patients with acute inferior, posterior and lateral myocardial infarction(MI).Methods The study consisted of 41 normal subjects and 23 patients with acute MI.RT-3DE was performed and three-dimensional image data was analyzed offline with software.A series of global and regional left ventricular volume curves were plotted.Regional and global diastolic volumes, regional and global systolic volumes, regional and global ejection fractions, regional stroke volume to global diastolic volume were compared respectively between control group and MI group.Results By contrast with control group, global left ventricle function and regional left ventricle function in the zones with infarction and part of the zones close to infarction had significant difference( P＜0.05),however,no effective statistic change was found in the most of the distal zones of infarction( P＞0.05).Conclusions RT-3DE can accurately evaluate measurement the left ventricular global and regional function in patients with acute MI.

Objective To evaluate the value of ultrasound elastography in the diagnosis of breast tumor ,and compared with imaging analysis .Methods To collect the image data of 160 patients ,confirmed by pathology ,a total of 182 ,preoperative ultra-sound elasticity imaging and DWI ,ultra sonic elastography diagnosis by five points method ,DWI on the basis of the measured ADC value in the diagnosis of lesions ,respectively compared with pathology .Results Ultrasound elastography diagnosis of 89 malignant tumors ,of which the correct diagnosis of 78 malignant tumors ,7 misdiagnosis ,11 benign misdiagnosed as malignant diagnosis;93 benign tumors ,86 of correct diagnosis ,11 misdiagnosis ,7 malignant misdiagnosed as benign ,sensitivity was 87 .6% ,specificity of 92 .5% ,the Accuracy was 93 .9% ;ultrasound elastography and DWI combined imaging diagnosis of 86 malignant tumors ,81 correct diagnosis of malignant tumors ,4 misdiagnosis ,5 from the benign misdiagnosed as malignant diagnosis ,96 benign tumors ,92 correct diagnosis ,5 misdiagnosis ,the sensitivity was 94 .1% ,specificity of 95 .8% ,the accuracy was 97 .2% .Conclusion Ultrasound elas-tography in breast benign and malignant tumor diagnosis with higher sensitivity and specificity ,accuracy ,joint DWI can significantly improve the sensitivity and specificity of breast benign and malignant tumor diagnosis ,accuracy .

Objective：To confirm the effects of the macrophages and NO in the fibrosis formation of transplanted kidneys with chronic rejection. Methods：The quantitive immunohistochemistry was employed to observe the changes of relative quantitiy of macrophages, NO, collagen Ⅲ andⅣ， and to reveal the association between the increases of macrophages， NO， histopathologic damages, deposition of collagen Ⅲ and Ⅳ, finally, to infer the roles of the macrophages and NO in the fibrosis formation of transplanted kidneys with chronic rejection. Results: The macrophages accumulated and increased in the glomeruli, the tubules and the intersiticia tissue of kidneys, which was companied by the increased expression of collagen Ⅲ and Ⅳ during the early and middle stages. However, the macrophages and NO could not be detected, which was companied by the decreased deposition of collagen Ⅲ and Ⅳduring the advanced stage. There were significant differences between the 3 types(glomerulus disease type,blocking vessel type and intersticial sclerostic type) (P<0.05 or P<0.01). Conclusion：The increase of macrophages and the NO may closely interrelated with the fibrosis formation in transplanted kidneys with chronic rejection.

Objective To describe the epidemiological characteristics of profession related long-standing behavior during preconception and progestation,and to probe the relationship between prolonged standing jobs and the common pregnancy related complications among pregnant women,in Ma' anshan city,Anhui province.Methods In this cohort study,subjects who had their first antenatal examination at Ma' anshan Maternal and Child Care Centers were recruited under informed consent,from October 2008 to October 2010.All the information were collected through questionnaires in the first,second and third trimesters respectively.Three questionnaires were filled in by subjects under the guidance of healthcare takers.Results In the study,the 754 percentile of prolonged-standing times were 4.0 h/d and 3.0 h/d respectively in preconception and progestation.The characteristics of pregnant women with low social/economic status,prone to be involved in stand-long occupation.Results in logistic regression analysis,prolonged-standing jobs during preconception was the risk factor of pregnancy-induced hypertension and severe anemia.The adjusted odds ratios were 2.05 (95％CI:1.26-3.31) and 1.38 (95％CI:1.03-1.85) respectively.Conclusion Prolonged standing jobs appeared to be common occupational exposure to and risks of both pregnant woman and their fetus.Exposure to these kinds of jobs during preconception could increase the risk of pregnancy-induced hypertension and severe anemia.In order to promote maternal health programs,all the related occupational risk factors should be valued and avoided during preconception and pregnancy.

OBJECTIVESTo evaluate the efficacy of integration of metabolism images into multimodal neuronavigation for frameless stereotactic biopsy.

METHODSFrom January to December 2012, 32 patients with brain lesions underwent frameless stereotactic biopsy guided by positron emission tomograph (PET) and proton magnetic resonance spectroscopy ((1)H-MRS)-based multimodal neuronavigation and intraoperative magnetic resonance imaging (iMRI). The cohort consisted of 16 male and 16 female patients, with a mean age of 45 years (range: 7 - 62 years). Biopsy targets were identified according to PET and (1)H-MRS. Biopsy was performed with Varioguide frameless biopsy system. Diagnostic yield and complications were assessed.

RESULTSMetabolism images-based multimodal neuronavigation and iMRI were successfully implemented in all cases. iMRI confirmed accuracy of biopsy targets. All the specimens obtained pathological diagnosis, the diagnostic yield was 100%. In 1 patient, iMRI found small hematoma (< 5 ml), surgical evacuation wasn't needed with intraoperative complication rate 3.1%. With the help of multimodal neuronavigation, no patients had new or worsened neurologic deficits.

CONCLUSIONSIntegration of metabolism images into multimodal neuronavigation provide not only anatomical, but also metabolic and functional information for frameless stereotaxy, increasing diagnostic yield and avoiding postoperative neurologic deficits.

Adolescent ; Adult ; Biopsy ; methods ; Brain ; pathology ; Brain Neoplasms ; pathology ; Child ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Neuronavigation ; Positron-Emission Tomography ; Stereotaxic Techniques ; Young Adult

BACKGROUND: Vertebroplasty (PVP) and kyphoplasty (PKP) are important methods for the treatment of osteoporotic vertebral compression fractures in the elderly. Although bone cement has certain liquidity and vertebral fractures are often in different situations, bone cement leakage rate is still high. OBJECTIVE: Based on the theoretical discussion and clinical analysis, to study the theoretical causes of bone cement leakage and effective prevention methods. METHODS: A total of 162 cases (186 vertebrae) were treated with three methods of vertebroplasty. Group A: 64 cases with 78 vertebrae were treated with conventional cemented vertebroplasty; Group B: 57 cases with 65 vertebrae were treated with cemented vertebroplasty using cement pump; Group C: 41 cases with 43 vertebrae were treated with balloon kyphoplasty. The leakage of bone cement was observed in three groups. RESULTS AND CONCLUSION: Of the 186 vertebrae, postoperative bone cement leakage occurred in 25 vertebrae, with the leakage rate of 13% (25/186). Group A had bone cement leakage in 11 vertebrae, and the leakage rate was 14% (11/78). Group B had bone cement leakage in 8 vertebrae, and the leakage rate was 12% (8/65). Group C had bone cement leakage in 6 vertebrae, and the leakage rate was 14% (6/43). There was no significant difference among the three groups in the leakage rate of bone cement (P > 0.05). That is to say, the causes of bone cement leakage are not completely controllable, and the leakage position has some randomness. Strict and careful imaging monitoring is an intuitive method to prevent bone cement leakage.

OBJECTIVETo investigate the effects of Shadu Cao Mixture (SDCM, traditional Chinese medicine) on immune functions of immunosuppression mice.

METHODSFifty BALB/C mice were randomly divided into blank control group, model group, SDCM low-dose, middle-dose and high-dose group. Except the blank control group, other groups were intraperitoneal injected with cyclophosphamide (40 mg/kg) to establish immunosuppression mice model. The blank control group and model group received gavage administration with nonnal saline, while the other groups received gavage administration with different doses of SDCM (10, 20, 40 m/kg for 15 days) respectively. The number of leukocytes and serum levels of interleukin-2 (IL-2), tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ) in peripheral blood, spleen index, and the function of NK cells were measured.

RESULTSCompared with the model group , SDCM increased the number of leukocytes and serum concentrations of IL-2, TNF-α and IFN-γ in peripheral blood and improved the spleen index and the function of NK cells significantly (P < 0.05-0.01).

CONCLUSIONSDCM could remarkably enhance the immune functions of immunosuppression mice induced by cyclophosphamide.

Animals ; Cyclophosphamide ; Disease Models, Animal ; Drugs, Chinese Herbal ; pharmacology ; Immunosuppression ; Interferon-gamma ; blood ; Interleukin-2 ; blood ; Killer Cells, Natural ; immunology ; Mice ; Mice, Inbred BALB C ; Spleen ; immunology ; Tumor Necrosis Factor-alpha ; blood

Objective To investigate the effects of dominant-negative truncation mutant?NTCF4, lacking the N-terminal form of TCF4 gene,on biological characteristics of renal cancer cell line GRC-I and explore the molecular mechanisms.Methods GRC-I cell was transfected with pCDNA3-?NTCF4 eukary- otie expression plasmid,pCDNA3 empty vector to construct the stable cell line GRC-I/?NTCF4 and GRC-I/ Mock respectively.The morphological changes of stable cells were observed and the cells growth curve was detected through light microscope.The cellular proliferation activities were determined using the MTT assay. The protein expression of Wnt pathway downstream target gene C-Myc and Cox-2 was evaluated by immuno- cytoehemieal method and Western Blot analysis.Results After the dominant-negative?NTCF4 gene was permanently expressed,the GRC-I/?NTCF4 stable cells morphologically showed that appearance changed from circular to long-spindle shape,growth rate decreased with less karyosehisis found,malignant pheno- types reversed to normal renal tubular cells.MTT assay revealed that the proliferation activities of GRC-1/?NTCF4 cells were inhibited by 11.2%-35.5% compared with GRC-I cells (P＜0.05),while the GRC- I/Mock cells have no difference with the control cells.Immunocytochemical analysis and Western Blot showed that the C-Myc and Cox-2 protein expression level of GRC-I/?ANTCF4 cells were significantly sup- pressed in comparison with that of GRC-I/Mock and GRC-I cells.Conclusions The dominant-negative truncation mutant?NTCF4 could partially inhibit the growth of renal cancer cells and down-regulate the pro- tein expression of Wnt pathway target gene C-Myc and Cox-2.These findings provide a experimental founda- tion for applying cell signal therapy to renal cell cancer by blocking the Wnt signaling pathway.

OBJECTIVEDespite progress in antibiotic therapy and intensive care, childhood bacterial meningitis (BM) remains a devastating disease. We conducted this study to investigate the changes in clinical characteristics, the etiologic agents and antimicrobial susceptibility of BM during the past 10 years in children under 14 years of age.

METHODSThese 126 patients were divided into two groups according to their date of admission. Group 1 included 64 patients admitted from January 1998 to December 2002, and group 2 included 62 cases admitted from January 2003 to December 2007. All pediatric medical charts of them were reviewed.

RESULTSThe predominant isolated bacteria from CSF were coagulase-negative staphylococcus (17/62, 27.4%) and Escherichia coli (9/62, 14.5%) in group 2. The resistance rate of staphylococcus against oxacillin (MRS) was 68.4% (13/19) in group 2, significantly higher than that of group 1 (16.7%, 2/12). Among 126 cases, 42 had seizure attack and 16 had consciousness disturbance, the proportions of them in group 2 (11/62, 17.7%; 4/62, 6.4%) were lower than those in group 1 (31/64, 48.4%; 12/64, 18.8%, P < 0.05). Cases in group 2 survived with complications [13/62 (21.0%)] and sequelae [11/62 (17.7%)] were lower than those in group 1 (24/64, 37.5%, 23/64, 35.9%, P < 0.05), but the rate of empirical therapy modification in group 2 (21/62, 33.9%) was higher than that in group 1 (7/64, 10.9%, P < 0.01).

CONCLUSIONThe predominant bacteria in children with BM are staphylococcus and Escherichia coli in recent years. The antibiotic resistance rate of bacteria has been higher year after year. The clinical patterns of pediatric BM have changed with a decrease in clinically serious cases, complications and sequelae, but an increase in modification of empirical therapy.

Anti-Bacterial Agents ; pharmacology ; Child ; Child, Preschool ; Cross Infection ; microbiology ; Drug Resistance, Bacterial ; Escherichia coli ; drug effects ; isolation & purification ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Meningitis, Bacterial ; epidemiology ; microbiology ; Retrospective Studies ; Staphylococcus epidermidis ; drug effects ; isolation & purification