Adolescent ; Adult ; Audiometry, Pure-Tone ; Ear Protective Devices ; utilization ; Humans ; Middle Aged ; Noise, Occupational ; prevention & control ; Young Adult

In order to improve the scientific research capability of medical graduates,help them cultivate scientific statistical mind and the ability to resolve actual medical scientific research issues,we made a teaching reform on the teaching objectives,curriculum system,teaching material and informational teaching of Medical Statistics teaching,established a diversified teaching pattern and improved the teaching quality.

Objective To evaluate the feasibility of high intensity focused ultrasound (HIFU) associated microbubble-enhancing contrast (“SonoVue”) therapeutic ablation of uterine fibroids in patients with pelvic operation history. Methods A total of 100 patients with uterine fibroid from October 2010 to December 2012 in Suining Central Hospital of Sichuan were treated with HIFU associated SonoVue. Among them, 50 patients had pelvic operation history. The no-perfused volume, median fractional ablation, ablation power rate, ablation dose, treatment time and adverse reaction were recorded. Results There was no statistical significance between patients with operation history and without in no-perfused volume and ablation does. The ablation power was lower in patients with operation than without. The treatment time and room time were longer in patients with operation than without. The adverse reactions were higher in patients with operation than without, especially skin pain and lower abdominal pain ( <0.05) . According to short- and long-term follow-up results, no major complications were observed in any patients. Conclusion Pelvic operation history increases the difficulty in treatment of HIFU ablation uterine fibroids. HIFU associated contrast agent SonoVue ablation can be considered a safe and feasible approach to the management of uterine fibroids in patients with pelvic operation history after grasping the indications and contraindications.

Objective To study the expression of VEGF-C and its receptor in breast carcinoma tissue and in peritumoral tissue,as well as their clinic significance.Methods Immunohistochemistry SP method was used to examine the expression of VEGF-C and VEGFR3 in 70 cases of breast cancer and in its peritu- moral tissue.Results In all 70 cases of breast cancer,the positive expression rate of VEGF-C in breast car- cinoma tissue was 78.6 %,and its rate in peritumoral tissue was 54.3 %.There was a significant stastistic dif- ference between the two groups(P

Membrane proteins are the main undertakers of biofilm function, and also the most important target group for innovative drug discovery and research. About 60% of drugs targets are membrane proteins. Due to the obvious aggregation and denaturation tendency of membrane proteins in aqueous solution, it is difficult to simulate the membrane like environment to maintain the correct conformation of membrane proteins in vitro, which results in the slower-growing research on the structure and function of membrane proteins and related ligand drugs than that of water-soluble proteins. Membrane protein stabilization technology is the premise of establishing high specificity, high sensitivity and high throughput drug screening methods for membrane protein ligands, which is of great significance. In this paper, some techniques for stable separation and purification of membrane proteins are reviewed, including detergents, artificial membranes, polymers, lentiviral particles and so on, as well as their specific applications in drug screening.

The abnormality of ubiquitin proteasome pathway is an important factor leading to the imbalance of protein homeostasis. In this process, the deubiquitinase responsible for removing the ubiquitin chain of protein substrate is very important. Its abnormal activity or expression can cause the functional changes of key oncogenic/tumor suppressor proteins, which directly or indirectly lead to the occurrence, development and malignant evolution of tumors. Based on this, the discovery and research of small molecule inhibitors targeting deubiquitinases have become a hot field of anti-tumor candidate drugs. This review will focus on the regulatory effect and mechanism of ubiquitin proteasome pathway, especially deubiquitinase on tumor, introduce the application of deubiquitinase small molecule inhibitors in tumor treatment, and discuss the research status and latest progress of small molecule inhibitors, so as to provide ideas for the research of new anti-tumor strategies based on deubiquitinase.

0.05);however there were significant difference between D4T+DDI+NVP group and AZT+DDI+NVP group(P

ObjectiveTo assess the current situation of postgraduates knowledge about medical research design and optimize the curriculum setting of research design.MethodsAn investigation was carried out in the postgraduates of 2011 using questionnaires in a medical university..The questionnaire ineluded basic information of participants and cognition of basic methods of research design.ResultsA total of 473 postgraduates participated in the investigation.Among them,311 systematically learned medical statistics before enrollment,and 275 ( 58.14％ ) once participated in scientific researches.Most of them ( ＞80％ ) knew about the 10 basic methods of research design listed in the questionnaire,but only a few of them were familiar with them,and some even didn't know about the methods.ConclusionWe should pay attention to the culture of scientific research thought in statistical design,strengthen the practice of research design teaching,and the curriculum of research design should be led into undergraduate course.

ObjectiveTo help physicians improve detection rate of depressive and anxiety disorders by exploring the complaints of gastrointestinal(GI) outpatients with these disorders in the general hospitals.Methods A multicenter cross-sectional study was conducted from May to June in 2007.A total of 1995 subjects from 13 general hospitals in China were screened with the hospital anxiety and depression scale ( HADS ) and patient health questionnaire 15-item (PHQ-15).Meanwhile patients'complaints were recorded.Psychiatrists interviewed subjects scored ≥8 on HADS and made diagnoses by using the mini international neuropsychiatric interview(MINI).There were 323 outpatients diagnosed as depressive or anxiety disorders and 1287 outpatients without diagnosis of depressive or anxiety disorders.The complaints and PHQ-15 sores were compared between these two groups.The logistic regression analysis was used to determine the risk of having depressive or anxiety disorders with the number of complaints as an independent variable.ResultsSome symptoms between two groups were statistically significant,including weakness(34.1％ vs 18.8％ ;χ2 =18.04; P=0.000),fatigue(9.6％ vs 5.7％ ;χ2 =6.58,P=0.010)and insomnia( 7.1％ vs 3.4％ ; χ2 =8.87 ; P =0.003 ).Logistic regression analysis showed that with each additional complaint,the odds for an interview-based diagnosis of depressive or anxiety disorders increased,the odds ratio(OR) was 1.12(95％ CI,1.08 ～ 1.17,P=0.000).In comparison to the outpatients without depressive or anxiety disorders,outpatients with these disorders signifycantly had higher PHQ-15 scores (( 11.12 ± 4.92 ) vs (6.68 ± 4.05 ) ; t =16.84,P =0.000).ConclusionThe GI outpatients with depressive and/or anxiety disorders have worse mental heath and more complaints,compared to patients without these disorders.These results may help physicians to better identify depressive disorders and anxiety disorders.

or physicians and specialists other than psychiatric professionals in general hospitals should be enhanced together with psychiatric consultation.