After the functions and requirements of medical information officers and the distribution of enterprises were described, the problems in domestic education of medical informatics ( such as insufficient class hours for medical course and unclear orientation of subjects) were analyzed according to the status quo in training of medical informatics students, and some suggestions were put forward for the orientation of medical informatics education in China.

Objective: To investigate the function and mechanism of phospholipase Cγ1 (PLCγ1) in cell-matrix adhesion in colorectal cancer. Methods: Highly metastatic colorectal cancer cell line LoVo and lowly metastatic colorectal cancer cell line SW480 were subjected to cell-matrix adhesion assay. U73122 (a specific inhibitor of PLC) and pyrrolidine dithiocarbamate (PDTC) (an inhibitor of NF-κB) were used to study the effect of PLCγ1 and NF-κB on cell-matrix adhesion. Furthermore, Western blot and gel electrophoresis mobility shift assay (EMSA) were performed to detect the mechanism of PLCγ1 in colorectal cancer cell adhesion to matrix. Results: Inhibition of PLCγ1 or NF-κB resulted in reduction of cell-matrix adhesion in a dose-dependent manner in LoVo cells(P<0.05), but had no marked effect on SW480 cells. Western blot analysis showed that epidermal growth factor (EGF) stimulated the phosphorylation of PLCγ1 in LoVo. The results of EMSA indicated that inhibition of PLCγ1 signaling pathway also down-regulated the activity of NF-κB while EGF reversed the function. Conclusion:These data suggest that PLCγ1 plays a pivotal role in the EGF-induced cell-matrix adhesion of highly metastatic colorectal cancer cells and that NF-κB is also functional in this signaling pathway.

Objective: To investigate the function and mechanism of phospholipase C?1 (PLC?1) in cell-matrix adhesion in colorectal cancer. Methods: Highly metastatic colorectal cancer cell line LoVo and lowly metastatic colorectal cancer cell line SW480 were subjected to cell-matrix adhesion assay. U73122 (a specific inhibitor of PLC) and pyrrolidine dithiocarbamate (PDTC) (an inhibitor of NF-?B) were used to study the effect of PLC?1 and NF-?B on cell-matrix adhesion. Furthermore, Western blot and gel electrophoresis mobility shift assay (EMSA) were performed to detect the mechanism of PLC?1 in colorectal cancer cell adhesion to matrix. Results: Inhibition of PLC?1 or NF-?B resulted in reduction of cell-matrix adhesion in a dose-dependent manner in LoVo cells(P

Objective To study the relationship between histological activity index and serum of tumor nec-rosis factor-α( TNF-α) ,peripheral blood T cell subsets in patients with chronic hepatitis B.Methods Histopatholog-ical examinations were performed in 237 patients with chronic hepatitis B and 12 controls.The histological activity index( HAI) were analyzed by knodels method.These patients were divided into the four groups according to histologi-cal activity index classification:the control group(n=12),mild group(n=67),moderate group(n=89),and severe group(n=81).The serum levels of TNF-αwere determined by ELISA,and peripheral blood T cell subsets were ana-lyzed by flow cytometry.Results The serum level of TNF-αin the mild group[(29.65 ±10.15)μg/L],moderate group[(38.96 ±7.32)μg/L]and severe group[(47.73 ±6.99)μg/L]were higher than those in the control group [(13.78 ±6.40)μg/L](q=14.38,19.97,24.83,all P<0.05),significant positive correlation lied between the histological activity index classification and the serum level of TNF-α(r=0.708,P<0.05).The rate of CD8+cells in the moderate group[(27.66 ±6.63)μg/L]and the severe group[(28.98 ±5.92)μg/L]were higher than those in the control group[(22.32 ±1.84)μg/L](q=3.84,4.76,all P<0.05),and the ratio of CD4+/CD8+in the moderate group(1.32 ±0.37) and the severe group(1.19 ±0.30) were lower than those in the control group(1.67 ±0.14) (q=4.20,5.72,all P<0.05),but the rate of CD8+cells and the ratio of CD4+/CD8+showed no significance among the mild group,moderate group and severe group.Conclusion TNF-αand disorder of cellular immunity may play an important role in the development and progression of intrahepatic vascular lesion.

Objective To study the relationship between vascular obstruction,inflammation and the pseudolobuli formation in liver tissues with chronic hepatitis B.Methods The liver biopsies from 1256 patients with chronic hepatitis B was observated by HE,histochemical,immunohistochemical and the electricity mirror techniqe.Results (1)The intrahepatic vascular inflammation and obstruction was a histopathological characteristics of liver cirrhosis of chronic hepatitis B;(2)The lesions of vascular inflammation caused the vascular obstruction and induced the proliferations of venous and fiber;(3)The blood vessel of hyperplasia revolved round the liver cell into the irregular cell circular(tiny node).The tiny node settled the composition base in the interest of pseudolobuli formation;(4)The blood vessel of hyperplasia once more inflammation,blocking,fiber deposit constituted the fiber brings,pseudolobuli formation.Conclusion The vascular obstruction,inflammation has a closely relationship with the pseudolobuli formation in liver tissues with chronic hepatitis.

BACKGROUND:Thrombogenesis is the most common cause of failure in the implantation of tissue engineered small-caliber vesselgrafts.And immobilizing heparin onto the surfaces of vascular scaffoidgrafts is often applied to improve their blood compatibility and patency.OBJECTIVES:To investigate the small intestinal submucosa(SIS)surface after heparinizadon with hypothermic plasma technique,to ireprove the blood compatibility of SIS and to explore the possibility for the construction of small-caliber vascular grafts with modified SIS seaffolds in vivo.DESIGN:Single exponent study.SETTING:Department of Orthopaedics,the Six People's Hospital Affiliated to Shanghai Jiao Tong University;ShanghaiInstitute for Microsurgery of Extremities.MATERIALS:This study was performed in the Shahghai Institute for Microsurgery of Extremities from January to October 2006.The jejuna were taken from farm pigs.METHODS:The SIS surface of pigswere processed by argon plasma(20mL/min)technique at different time periods(0,2,4,6,8,10,12,and 14 s),which were then immediately immerged in heparin sodium solution for 24 hours.Dogs were divided into two groups.The SIS films were sewn into a 3-mm diameter tube and implanted into the defect of a canine femoral by anastomosis as a vascular graft.The observation lasted for 6 weeks.MAIN OUTCOME MEASURES:The surface morphologies of SIS were observed under scanning electron microscope(SEM).The antithrombogenicity of SIS films was tested by water contact angle,blood coagulation time and platelet adherence observation by SEM.The efficiency of the SIS graft was evaluated by the patency in the circulation of blood with colour doppler detection and histology.RESULTS:Heparinized SIS showed great different surface morphology comparing with untreated SIS.Untreated SIS surface looked like wrinkled film,but on heparinized SIS surface spread with uniform micro-dots,which looked like a layer of heparin adhesion.Water contact angle decreased with the increase of plasma irradiation time.Prothrombin time (PT),partial thromboplastin time(APTT),and thrombin time(TT)of the SIS films modified with heparin were prolonged.Platelets adhered much more on untreated SIS film than on heparinized SIS film.Vascular graft from SIS embolized in the lumina completely at day 3 after anastomosis.Heparinized SIS graft kept patency for six weeks,and the inner surface of graft was covered with full endothelial cells.CONCLUSION:Hydrophilicity and antithrombogenicity of heparinized SIS are increased obviously after hypothermia plasma treatment.

At present,most of the scholars of traditional Chinese medicine (TCM) considered that climacteric syndrome was caused by yin-deficiency,as the therapy of nourishing yin and clearing heat was the most common treatment,neglecting the pathologic role of yang-deficiency in climacteric syndrome.This paper redefined the pathogensis of climacteric syndrome and its syndromes based on differentiation in Gynecology of Traditional Chinese Medicine of various versions and in accordance with previous syndrome epidemiological results over it.The emerge of hot flushes and sweating,forgetful and hyposexuality was prevalent.The inaccurate description of hot flash and sweating in climacteric syndrome was rectified.The therapeutic effects of nourishing yin therapy on vasomotion were discussed based on the understanding of etiology,pathology and treatment of climacteric syndrome in ancient Chinese medical books.The phytoestrogens action of warming kidney-yang drugs was summarized from the aspect of modern pharmacology for exploring the significance of the role of yang-deficiency in climacteric syndrome.The treatment against yang-deficiency would be an innovative clinical pathway of climacteric syndrome.

Objective The analysis of correlation between the occurrence of tourette syndrome with one-child family environment. Methods The authors investigated home environment of two groups. One group included 200 patients with tourette syndrome and is the other group included healthy children of the same age in 3 different primary and secondary schools. By comparing with the home environmental factors, parenting styles and parent emotional factors between two groups. Results The instabilities of home environment included bad family relationship, separation between parents, divorce, scolding and even beating children. It showed that anxiety of the direct supervisors among the sickness group were higher than healthy control group as well. Among the ten factors of the Family Environments Scale, the significant differences showed in six factors of affection,cohesion,expressiveness, conflict, intellectual-culture orientation, active-recreational orientation, organization between the two groups. Conclusion So we concluded that ①There is a correlation between the parents relations,parenting styles and the incidence of tourette syndrome; ②An anxiety of the direct supervisor may initiate, even aggravate the incidence of tourette syndrome; ③It is important to convert the education mode and take family overall treatment in order to reduce the incidence and improve the effectiveness of tourette syndrome.

OBJECTIVE: To research the mechanism of the tongue inspection in traditional Chinese medicine and to study the special relationship between temperature distribution of the tongue and the tongue color. METHODS: The temperature field of human and pig's tongue was measured by infrared thermal vision system and thermal-couple probe. The blood perfusion rates in the human tongue and the pig's tongue were obtained with laser Doppler rheometer and CBI-8000 physiology research system. The temperature field of the profile of tongue was computed by numerical method. RESULTS: The quantitative curve of the temperature distribution on the surface of tongue and the relationship between temperature and blood perfusion rate were obtained. And the temperature in the profile of tongue was obtained by finite element method. CONCLUSION: The research involves that the different tongue color can reflect different tongue temperature and blood perfusion rate. This proved that it is acceptable to apply the bio-heat transfer theory to the tongue inspection research. The results provided a new method to research the tongue inspection in traditional Chinese medicine.

This study was aimed to establish the thin layer chromatography (TLC) identification and content determination of Tibetan medicineJi-Ni De-Xie (JNDX). TLC was used to identifyBerberis kansuensisSchneid,Terminalia chebula Retz.,Phyllanthus emblicaandCurcuma LongaL. The high performance liquid chromatography (HPLC) was used to determine the content of berberine hydrochloride. The results showed that the TLC identification had a good resolution with clear spots and no interference from the negative reference. The content of berberine hydrochloride showed a good linear relationship with the peak area in the range of 0.05-0.45 mg·mL-1. The regression equation wasY = 40 679X-130.56. The average recovery was 99.07%. It was concluded that the established method was easy to operate with good repeatability. It can effectively control the quality of Tibetan medicine JNDX.