Overexpression of trophoblastic stem cell transcription factor,forkhead boxD3,contributes to malignancy of human choriocarcinoma JAR cells / 中国组织工程研究

BACKGROUND: Choriocarcinoma is a kind of trophoblastic neoplasm with highly aggressive phenotypes. Forkhead box D3 (FoxD3) is an embryonic and trophoblastic stem cel transcription factor. It plays important roles in different physical and pathological situations such as embryogenesis, carcinogenesis and tumor progression. OBJECTIVE:To investigate the role of FoxD3 in choriocarcinoma malignancy and the possible mechanism. METHODS:The human choriocarcinoma JAR cel line was employed in this study. The mRNA and protein expressions of genes were measured by quantitative RT-PCR (qRT-PCR) and western blot, respectively. The FoxD3 specific short hair RNA was applied to down-regulate gene expression. The cel proliferation was evaluatedin vitro by cel counting assay andin vivo by tumor growth. The migration/invasion was determined by transwel assay. The profile of FoxD3 targeted genes was investigated with an Agilent microarray and verified by qRT-PCR. RESULTS AND CONCLUSION: The FoxD3 mRNA and protein expressions in JAR cells were significantly higher than those in primarily cultured normal trophoblastic cells. Knockdown of FoxD3 by short hair RNA in JAR cells could inhibit cell proliferation and migration/invasionin vitro, and suppress thetumor growth with decreased β-human chorionic gonadotropin secretionin vivo. A profile of seven focal adhesion molecules (ITGA5, ITGB6, THBS4, COL6A3, VTN, NRXN3 and NLGN1) was verified to be targeted by FoxD3. Furthermore, knockdown of FoxD3 by short hair RNA could decrease the activation of focal adhesion kinase. All these findings suggest the overexpression of FoxD3 can contribute to the aggressive phenotype of choriocarcinoma JAR cells by regulating the profile of focal adhesion molecules and focal adhesion kinase.

Comparison of the effect of thoracoscopy combined with laparoscopy Mckeown and traditional three incision surgery in radical resection of esophageal carcinoma / 中国基层医药

Objective To compare the effect of thoracoscopy combined with laparoscopy Mckeown and tradi-tional three incision surgery in radical resection of esophageal carcinoma.Methods 300 patients with esophageal cancer who confirmed diagnosis by gastroscopy and pathology,were randomly divided into the observation group and the control group,150 patients in each group.The observation group was treated by thoracoscopy combined with lapa-roscopy Mckeown esophagectomy,and the control group was treated by traditional three incision surgery.The operation time,intraoperative blood loss,number of lymph node dissection,length of chest tube drainage,postoperative complica-tions,and length of postoperative hospital stay of the two groups were compared.Results There were no significant differences between the two groups in operating time[(282 ±62)min vs.(273 ±64)min,P >0.05],and number of lymph node dissection[(23.2 ±6.6)vs.(21.6 ±6.4),P >0.05],and there were significant differences in intraop-erative blood loss[(262.3 ±44.7)mL vs.(315.2 ±72.6)mL,P <0.05],length of chest tube drainage[(7.6 ± 1.6)d vs.(9.4 ±2.4)d,P <0.05],postoperative complications[16.7% vs.30.0%,P <0.05],and length of hos-pital stay[(10.5 ±2.5)d vs.(14.0 ±2.0)d,P <0.05].Conclusion Thoracoscopy combined with laparoscopy Mckeown esophagectomy can achieve the same efficacy compared with the traditional approach,and it is worth popu-larizing in clinic for reducing intraoperative blood loss,length of chest tube drainage,postoperative complications,and length of hospital stay.

Significance of pre-B cell colony enhancing factor in diagnosis and treatment of neonatal sepsis / 中华实用儿科临床杂志

Sepsis is still a major cause of death among neonates and its morbidity rate remain high nowadays.Because of the atypical symptoms and extremely dangerous progress in neonatal sepsis,early diagnosis and treatment are requisite.But the unique biomarkers are lacking meanwhile.Recent study shows that PBEF influences individual susceptibility,severity and outcome in sepsis.This review synthesizes the research of PBEF in neonatal sepsis in order to provide the evidence of reliable biomarker to diagnose and treat neonatal sepsis in the early stage.

Knowledge management in modern hospitals / 中华医院管理杂志

Knowledge management, a completely new way of thinking and mode of management in the knowledge economy era, is of great practical significance to modern hospital management. Knowledge management in modern hospitals ought to be conducted in accordance with the demands for organizational knowledge and knowledge-based organizations, with sound combination of hardware and software and harmony between people and their surroundings. Efforts ought to be made in achieving innovations and breakthroughs in the three major aspects of knowledge environment, knowledge system and knowledge organization so as to meet in a calm manner the opportunities and challenges that come with knowledge economy.

Reflections on ttae initial misidentification of the pathogen of SARS / 中华医院管理杂志

The rashness in research as reflected in the initial misidentification of the pathogen of SARS is of great enlightening and warning significance to scientific and technical workers in the medical field. In order to effec-tively reduce errors in the clinical diagnosis of SARS, succeed in obtaining reliable methods for its specific diagnosis, and strive for a genuine victory in the fight against it, it is imperative to vigorously uphold the scientific spirit of adher-ing to truths and defying authorities and promote the style of doing things in a rigorous, realistic, accurate, persistent and down-to-earth manner. Rashness must be avoided by all means.

Difference in efficiency between computer-based and handwritten hospital admissions records / 中华医院管理杂志

Objective To explore the efficiency of writing admissions records with the electronic medical record system. Methods 16 interns with the same educational backgrounds and residency periods were randomized into 2 groups and wrote admissions records respectively with the electronic system and by hand, the traditional method. 1 week later, the same records were again written by the two groups, now each using the other's method. The time for completing each part of the records was noted down in real time across the entire process. The time taken by the interns to complete the records was changed into marks of speed, the assessments of the records by experts were changed into marks of quality, and composite marks resulted from the two after weighting. Statistical testing was done with the two methods. Results In terms of time, the average total time taken by the electronic and traditional groups was respectively 19. 85 m and 39. 49 m; in terms of quality, the electronic group got higher marks in scores for present, past, personal, and family histories and physical examination and in the overall score; in terms of general efficiency, the electronic group got average marks of 91. 13 while the traditional group got average marks of 65. 72, the difference being statistically significant (P

Research on systems for preventing and controlling emergent public health crises: I. The emergency re- sponse system / 中华医院管理杂志

The paper analyzes the operation of the public health administration system under normal circumstances and the dilemmas the system faces in case of a crisis, sums up the new features presented by e-mergent public health crises under the new circumstances: rapid spread, multiplier amplification and superimposed resonance, and discusses issues related to the establishment of an emergency response system. It argues that in order to meet the universal demands in preventing and controlling modern crises, it is imperative for the existing public health administration system to transform into the structurally differentiated and greatly enlarged emergency response system; and it is also imperative to establish the three subsystems of emergency decision-making, emergency mobilization and operations, and control and correction so as to improve and strengthen the functions of the original system.

Analysis of the basic properties of public health products and the balance between their supply and demand / 中华医院管理杂志

Starting from the definition of public health, the paper analyzes the general properties of public health products as public products and the special properties of public health products as health products and discusses the structures and features of public health products in both supply and demand models. It also puts forward some suggestions for realizing balance between the supply and demand of public health products: ①establishing a parallel operational mechanism; ②creating “complete information” linking supply and demand; and ③ bringing about “entire rationale” to public behavior.

Fostering scientific and technological cooperation and speeding up innovation / 中华医院管理杂志

Scientific and technological cooperation plays a key role in improving innovative capabilities and speeding up achievement transformation. Promoting self-discipline in morality, strengthening restraint by rules and regulations and enhancing legal protection of intellectual property are some of the key links in perfecting the credit system and consummating large-scale scientific and technological cooperation. Adopting the "coordinate signature system" for significant achievements through large-scale scientific and technological cooperation is the driving force behind such cooperation. Establishing information and experimental technology platforms is the basis and supplementary, means of scientific and technological cooperation while setting up a talent flow and excitation system and perfecting the system of resources integration and sharing are beneficial to the creation of a sound environment for large-scale scientific and technological cooperation.

Research and development of a computer-based patient record system / 中华医院管理杂志

Objective To research and develop a computer-based patient record (CPR) system so as to realize the collection, processing, storage, transmission and application of patient information. Methods A CPR system was accomplished through developing a structural patient record, a text editor, techniques of database security, a knowledge base of on-line help, real-time monitoring, print control and function expansion. Results The CPR system, established with the above techniques, was put into use in two third-tier hospitals. It was proved via practice that the system, sound in operation, safe and stable, easy to maintain, and compatible, enhanced medical quality and clinical efficiency. Conclusion ①Creating a structural patient record is the basis of realizing CPR. ②Developing a specialized editor is the key to bringing about CPR. ③Possessing perfect database security techniques is the guarantee for starting CPR. ④Constructing a knowledge base of on-line help is an effective way to help doctors raise the level of their clinical decisions. ⑤The CPR system is an effective means of improving the quality of patient records.⑥The CPR system is also an effective means of improving the efficiency of patient record writing.

Occupational exposure of medicine and safety protection measures / 中华医院管理杂志

With reference to medical personnel's infection during the prevalence of SARS, the paper offers some general information on the risks of occupational exposure of medicine. The commonly seen risks fall into four major categories, including biological risks, such as infection of hepatitis B, hepatitis C, HTV, etc.; chemical risks, such as those from antineoplastic drugs, cleaning agents, disinfectants, narcotics, dusts; physical risks, such as radiation, injury by sharp instruments, injury from heavy burden, forced body positions, etc.; and psychological risks. The paper also puts forward some proposals for safety protection: intensifying training in occupational safety of medicine, reinforcing the protection of high-risk groups of people and high-risk body parts, augmenting the supply of protective materials and the improvement of protective facilities, and setting up and perfecting long-acting protection and supply mechanisms.

Practice and experience of Clinical Information System / 医疗卫生装备

Clinical Information System (CIS) is an important part of informatized hospital. Along with the developing of hospital informatization construction, CIS is paid more and more attention to. This paper introduces the functions of CIS and discusses the service flow design, data share, standardization and quality control of CIS.