Objective To evaluate the role and mechanism of miR-150 in cardiac fibrosis after MI.Methods A rat model of MI was established by up-regulating miR-150 through overexpressing miR-150 lentivirus.Real-time PCR and Western blot were applied in detecting the expression of collagen 1 α 1 and α-SMA protein in infarction area border.Masson coloration was applied in measuring fibrosis.Cardiac fibroblasts were isolated and cultured.UTR was used to report the carrier and lentivirus.And c-Myb siRNA was used to verify the relationship between c-Myb and microRNA-150.Results In vivo,MiR-150 was down-regulated in myocardium border zone in 14 day and 28 day after infarction (P ＜ 0.001,P ＜ 0.05),and overexpressing miR-150 promoted myocardial fibrosis (P ＜ 0.001),and inhibited the expression of collagen1α 1 and α-SMA (P ＜ 0.01,P ＜ 0.05).In vitro,c-Myb was the direct target gene of miR-150,and inhibited the expression of c-Myb resulting in the down regulation of collagen1α 1 and α-SMA,suggesting that the role of miR-150 was achieved by regulating c-Myb.Conclusions MiR-150 was down-regulated in myocardium border zone,and myocardial fibrosis can be improved by targeting c-Myb.

Objective To investigate the association between the signaling pathways of MCP-1-pCDH-GFP-trans?fected cells and deep venous thrombosis (DVT). Methods The cultured human umbilical vein endothelial cells (HUVECs) were tested by immunofluorescence and co-immunoprecipitation methods. The constructed MCP-1 over-expression/interfer?ence vector, and the change of transcription profile were detected by microarray assay and biological information technology analysis. Results MCP-1 over-expression/interference vector MCP-1-pCDH-GFP/MCP-1-LMP shRNAmir1 was con?structed and HUVECs were transfected. According to the microarray analysis we found that there were 18 down-expressed signaling pathways and 7 up-expressed signaling pathways in MCP-1-pCDH-GFP-transfected cells. There were 60 down-expressed signaling pathways and 15 up-expressed signaling pathways in the MCP-1-LMP shRNAmir1 transfected cells. Conclusion Signaling pathways of MCP-1 plays an important role in DVT formation,which may provide us a new way to study molecular mechanism of DVT.

Objective: To utilize powder physical characteristics, optimize prescription of dry granulation process of Xiaochuan Granules (XG). Methods: Filtering of granulation prescription was guided by investigating of powder material physical characteristics such as angle repose, compression degree, water content, etc; With one time forming rate, friability and quality score of granulation process as indexes, L9(34) orthogonal test which based on the evaluation method of information entropy was used to optimize the process parameters in XG dry granulation. Results: The optimum accessory is CD, optimum dry granulation technology parameters was as follows: roll wheel pressure of 7 MPa, roll wheel speed of 10 r/min, and feed speed of 18 r/min. Conclusion: Study of physical property of preparation materials could guide filtering prescription of dry granulation preparation; The prepared granules have high forming rate with moderate hardness and good flowability, and this optimized dry granulation technology is stable and reasonable.

OBJECTIVETo evaluate the outcomes of T3a prostate cancer with unfavorable prognostic factors treated with permanent interstitial brachytherapy combined with external radiotherapy and hormone therapy.

METHODSFrom January 2003 to December 2008, 38 patients classified as T3a prostate cancer with unfavorable prognostic factors were treated with trimodality therapy (brachytherapy + external radiotherapy + hormone therapy). The prescription dose of brachytherapy and external radiotherapy were 110 Gy and 45 Gy, respectively. The duration of hormone therapy was 2-3 years. The endpoints of this study included biochemical failure-free survival (BFFS), distant metastasis-free survival (DMFS), cancer-specific survival (CSS), and overall survival (OS). Survival curves were calculated using the Kaplan-Meier method. The Log-rank test was used to identify the prognostic predictors for univariate analysis.

RESULTSThe median follow-up was 71 months. The serum pre-treatment prostate-specific antigen (PSA) level ranged from 10.0 to 99.8 ng/ml (mean 56.3 ng/ml), the Gleason score ranged from 5 to 9 (median 8), and the percentage of positive biopsy cores ranged from 10% to 100% (mean 65%). The 5-year BFFS, DMFS, CSS, and OS rates were 44%, 69%, 82%, and 76%, respectively. All biochemical failures occurred within 40 months. The percentage of positive biopsy cores was significantly correlated with BFFS, DMFS, and OS (all P=0.000), and the Gleason score with DMFS (P=0.000) and OS (P=0.001).

CONCLUSIONST3a prostate cancer with unfavorable prognostic factors presents not so optimistic outcome. Hormone therapy should be applied to prolong the biochemical progression-free or metastasis-free survival. The percentage of positive biopsy cores and the Gleason score are significant prognostic factors.

Androgen Antagonists ; therapeutic use ; Brachytherapy ; Combined Modality Therapy ; Gonadotropin-Releasing Hormone ; agonists ; Humans ; Male ; Neoplasm Grading ; Prognosis ; Prostatic Neoplasms ; mortality ; pathology ; therapy ; Treatment Outcome

In the present study, terminal-restriction fragment length polymorphism (T-RFLP) technique was applied to assess the diversity and tissue distribution of the fungal endophyte communities of Alpinia officinarum collected from Longtang town in Xuwen county, Guangdong province, China, at which the pharmacological effect of the medicine plant is traditional considered to be the significantly higher than that in any other growth areas in China. A total of 28 distinct Terminal-Restriction Fragment (T-RFs) were detected with HhaI Mono-digestion targeted amplified fungal nuclear ribosomal internal transcribed spacer region sequences (rDNA ITS) from the root, rhizome, stem, and leaf internal tissues of A. officinarum plant, indicating that at least 28 distinct fungal species were able to colonize the internal tissue of the host plant. The rDNA ITS-T-RFLP profiles obtained from different tissues of the host plant were obvious distinct. And the numbers of total T-RFs, and the dominant T-RFs detected from various tissues were significantly different. Based on the obtained T-RFLP profiles, Shannon's diversity index and the Shannon's evenness index were calculated, which were significantly different among tissues (P < 0.05). Furthermore, two types of active chemicals, total volatile oils by water vapor distillation method and galangin by methanol extraction-HPLC method, were examined in the each tissue of the tested plant. Both of tested components were detected in all of the four tissues of the medicine plant with varying contents. And the highest was in rhizome tissue. Correlation analysis revealed there were significant negative correlations between both of the tested active components contents and calculated Shannon's diversity index, as well as the Shannon's evenness index of the fungal endophyte communities of the host plant (P = 0, Pearson correlation coefficient ≤ -0.962), and significant positive correlations between both of the tested active components contents and 325 bp dominant T-RF linkage to Pestalotiopsis (P = 0, Pearson correlation coefficient ≥ 0.975). In conclusion, A. officinarum is colonized by diverse fungal endophytes communities. The diversity of the fungal endophytes was found in the A. officinarum varied with differences of the tissue types of the host plants and was closely correlated with the accumulation of main active components, total volatile oils and galangin contents in the host plant tissue.
Alpinia ; chemistry ; microbiology ; Biodiversity ; China ; DNA, Fungal ; genetics ; DNA, Ribosomal ; genetics ; Drugs, Chinese Herbal ; analysis ; Endophytes ; classification ; genetics ; growth & development ; isolation & purification ; Fungi ; classification ; genetics ; growth & development ; isolation & purification ; Phylogeny ; Plants, Medicinal ; chemistry ; microbiology ; Polymorphism, Restriction Fragment Length

Objective To investigate the correlation between IL‐18 and deep venous thrombosis disease and its clinical significa‐tion .Methods To detect the expression of IL‐18 by ELISA ,we collected the blood samples of DVT patients as the experimental group(n=40) compared to the control group(n=40) and normal group(n=20) .IL‐18 over expression/interference vectors were constructed and transfected human vein endothelial cells ,analyzed by microarray and KEGG Pathway as biology information tech‐nology .Then discuss the association between IL‐18 and DVT .Results Results of ELISA showed that compared with control group and normal group ,the expression of IL‐18 gene in DVT patient were up‐regulated(F=11 .248 ,P<0 .01) .Compared with normal group ,the IL‐18 expression in control group have not been significantly up‐regulated(P>0 .05) .Immunofluorescence detected IL‐18 gene expression in cytoplasm of human umbilical vein endothelial cells (HUVECs) .According to the microarray analysis we found in the IL18‐pCDH‐GFP transfected cells 17 signaling pathways were down‐expressed while 16 signaling pathways were up‐expressed .Compared with normal group cells ,in the IL18‐LMP‐shRNAmir1 transfected cells 23 signaling pathways were down‐ex‐pressed and 9 signaling pathways were up‐expressed .Conclusion Based on the above experimental data ,it is very clear that IL‐18 influenced HUVECs and plays an important role in DVT ,it is possible to predict the diagnosis of DVT and act as candidate molecu‐lar markers .

Objective To evaluate the effect of the standardized training program for resident physicians in Ruijin Hospital,and analyse the problems so as to provide reference to improve the training.Methods Questionnaire surveys were conducted among 113 resident physicians,31 teachers and 43 head nurses in Rujin Hospital by using the simple random sampling and 300.The data was analysed by Kirkpatrick's model in four layers including reaction layer,learning layer,behaviors layer and results layer.Data of reation layer was analysed by ANOVA and data of behaviors layer was compared by paired t-test.Results Reaction layer:the resident physicians' overall satisfaction score for the training is 3.45.Learning layer:all resident doctors participating in the training passed all the exams organised by the hospital.Behaviors layer:Residents made a great progress in many aspects after the standardized training program,and the difference was statistically significant (P＜0.01) according to the analysis of all questionnaires written by residents,clinical teachers and head nurses.Results layer:both the patient complaint rate and the accident rate of the 113 resident physicians was 0 while they all passed the National Medical Licensing Examination and the employment rate was 100％.Conclusions the standardized training program for resident physicians in Ruijin Hospital gets fairly good effect.Resident doctors' quality and ability in many aspects are improved and the overall satisfaction for the training is high,but in salary,benefits and sense of belonging to the hospital,the satisfaction is relatively low.

BACKGROUND:Studies in recent years have demonstrated that arginase Ⅰ contribute to the process of numerous cardiovascular diseases,however,most of studies focus on arteries,few regarding venous diseases.OBJECTIVE:To explore the changes of arginase Ⅰ expression in rat traumatic deep venous thrombosis models,and to analyze the possible function of arginase Ⅰ in deep venous thrombosis formation.METHODS:Totally 100 Sprague Dawley rats were randomly divided into the control and model groups.Traumatic deep venous thrombosis models were established by clamping the femoral vein and immobilizing the bilateral hind limbs (hip spica cast fixation),and assigned into initial thrombosis,peak thrombosis and non-thrombosis groups according to different observing time points and pathophysiological situations of thrombosis.Whole blood RNA of each group was extracted,and the change of arginase I expression in blood cells of each group was detected by real-time PCR.RESULTS AND CONCLUSUON:Expression of arginase Ⅰ in the peak thrombosis group was significantly increased compared with other 3 groups (P < 0.01).There were no significances among control,initial thrombosis and non-thrombosis groups (P > 0.05).The finding demonstrated that arginase Ⅰ is closely related to deep vein thrombosis formation.

OBJECTIVETo study the effective method of microsurgical resection of the recurrent craniopharyngiomas.

METHODSMicrosurgical resection underwent in 40 cases with the recurrent craniopharyngiomas that accounted for 24 men and 16 women with mean age 35.1 year old. Visual deterioration was mainly complained in 25 patents, headache of symptoms in 9 patients, defect of visual field in 2 patients, amenorrhea in 2 patients, hyposexuality in one patient and diabetes insipidus in the one. Average history was 2.9 years. The superior sellar tumors on MR imaging grew in 19 cases, the superior-inferior sellar mass in 9 cases, intra-sellar in 5 cases and the tumors into the third ventricle in 7 cases. The huge calcification tumors were found in 5 cases, cystic tumors in 21 cases, and solid tumors 2 cases. Hydrocephalus presented in 12 cases. Evolution of tumor residuum was revealed in 31 cases after initial surgery and recurrent tumor after completing total removal of the tumor in 9 cases. The pterional approach was employed in 33 cases. The longitudinal fissure to the corpus callus approach in 2 cases was available for resection of the third ventricular tumor through the fornix column and septum pellucidum spaces.

RESULTSIn 33 cases with the pterional approaches, total removal of the tumors were completed in 22 cases, subtotal removal of tumors in 9 cases, and partial removal in 2 cases. In 5 cases with subfrontal approach, 4 patients the total removal of tumors obtained in 4 cases and one subtotal removal of tumor in one. Of 2 cases with the longitudinal fissure to the corpus callus approaches, one case was achieved with the total removal of tumor and the other with subtotal removal of tumor. The pituitary stalk was preserved in 8 cases, the pituitary stalk was severed in 9 cases and the pituitary stalk was not identified in 23 cases when surgery. 17 patients experienced diabetes insipidus and 12 patients had the hypothalamic hypofunction after surgery. One death occurred from the hypothalamic hypofunction 35 day after surgery. By follow-up from 3 months to 3 years, 22 patients returned normal life, 11 patients can carry out their self-life, and 6 patients need care.

CONCLUSIONSThe desirable removal of recurrent craniopharyngioma could be completed in the majority of patients although the reoperation of the tumors was performed very difficulty owing to the tumor adhesive to the surrounding hypothalamic structures.

Adolescent ; Adult ; Child ; Craniopharyngioma ; surgery ; Female ; Humans ; Male ; Microsurgery ; Middle Aged ; Neoplasm Recurrence, Local ; surgery ; Neurosurgical Procedures ; methods ; Pituitary Neoplasms ; surgery ; Reoperation ; Retrospective Studies ; Treatment Outcome

BACKGROUND:Sepsis has become the greatest threat to in-patients, with a mortality of over 25％.The dysfunction of gut barrier, especially the immunological barrier, plays an important role in the development of sepsis. This dysfunction occurs after surgery, but the magnitude of change does not differentiate patients with sepsis from those without sepsis. Increased intestinal permeability before surgery is of no value in predicating sepsis. The present study aimed to observe the changes of intestinal mucosal immunologic barrier in rat models of sepsis induced by cecal ligation and puncture. METHODS:Sixty Sprague-Dawley rats were randomly divided into a sepsis group (n=45) and a control group (n=15). The rats in the sepsis group were subjected to cecal ligation and puncture (CLP), whereas the rats in the control group underwent a sham operation. The ileac mucosa and segments were harvested 3, 6 and 12 hours after CLP, and blood samples were collected. Pathological changes, protein levels of defensin-5 (RD-5) and trefoil factor-3 (TFF3) mRNA, and lymphocytes apoptosis in the intestinal mucosa were determined. In an additional experiment, the gut-origin bacterial DNA in blood was detected. RESULTS:The intestinal mucosa showed marked injury with loss of ileal villi, desquamation of epithelium, detachment of lamina propria, hemorrhage and ulceration in the sepsis group. The expression of TFF3 mRNA and level of RD-5 protein were decreased and the apoptosis of mucosal lymphocyte increased (P<0.05) in the sepsis group compared with the control group. Significant differences were observed in RD-5 and TFF3 mRNA 3 hours after CLP and they were progressively increased 6 and 12 hours after CLP in the sepsis group compared with the control group (P<0.05, RD-5 F=11.76, TFF3 F=16.86 and apoptosis F=122.52). In addition, the gut-origin bacterial DNA detected in plasma was positive in the sepsis group. CONCLUSION:The immunological function of the intestinal mucosa was impaired in septic rats and further deteriorated in the course of sepsis.