Rheumatism of TCM(Traditional Chinese Medicine) is a kind of clinical frequent,common-see and refractory disease,which owns complex pathogenesis and pathogenic factors,with marginal and multi-disciplinary manifestations.The inconsistency in synopsis results in some di culties in research and impairs the development of clinical treatment.Therefore,it is a utmost important theme before us that how and by which ways to perform researches,also an important premise for normalization research on this disease.We try to explore the thinking and method of scienti c research of rheumatic disease from both basic and clinical aspects in this paper.

It was shown that in the stricture on abdominal aorta (SAA) rat myocardiac hypertrophy model,the caudal blood pressure was increased,the wall of left ventricle was thichened, the proliferation of T cell in thymus and spleen was decreased and the content of IL-2 was less than normal. Acanthopanax giroldii polysaccharide (AGPS10mg/kg.d, sc) could harmonize the heightened blood pressure and increase the level of immunity in the body. It was suggested by the result, that AGPS could be used to strengthen the heart function as well as immunity.

Test on coagulation time,prothrombin time and platelet aggregation of mice and rats showed that all four species of Puhuang had effects on blood coagulation, in which Typha angustata Bory et Chaub. was the strongest followed by T. davidiana Hand. -Mazz., T. latifolia L,and T. angustifolia L. Their mechanism of coagulation were not the same,in which T. angustata Bory et Chaub. mainly acted on thrombogen,while T.davidiana Hand. -Mazz. mainly acted on platelet aggregation.

BACKGROUND: Transforming growth factor beta 1 (TGF-β1) is a first selected growth factor in study of articular cartilage tissue engineering. Suitable concentration can stimulate proliferation, division and differentiation of articular chondrocytes. OBJECTIVE: To establish an special inducing system for differentiation of bone marrow mesenchymal stem cells (BMSCs) into chondrocytes in contained TGF-β1 culture in vivo,and to observe the changes in cell form and phenotype.METHODS: BMSCs were separated and purified from rabbit tibial tubercle using attachment culture method. Surface antigen of the third-generated BMSCs was determined by using flow cytometry. Subsequently,the third-generated BMSCs were induced with TGF-β1-contained special inducing system in 21-day culture, which was compared with human septal cartilage cells of nose following induction. Collagen type Ⅱ was qualitatively determined using immunohistochemical method.RESULTS AND CONCLUSION: Rabbit BMSCs were separated and purified using attachment culture method. The third-generated BMSCs were positive for surface antigen CD44,but negative for surface antigen CD34 and CD45. Cell form was irregular 21 days after induction. Immunohistochemical staining for type II collagen demonstrated positive cells. Results suggested that under culture system containing TGF-β1 BMSCs may directionally differentiate into chondrocytes,and there were not significant differences with normal chondrocytes.

BACKGROUND: Embryonic stem cells or bone marrow mesenchymal stem cells possess potential to treat cartilage defects, but the practicability is restricted by many factors. Therefore, it is significant to explore a new source of cells.OBJECTIVE: To investigate the feasibility of differentiating human umbilical cord blood stem cells into chondrocytes. METHODS: Human mesenchymal stem cells was obtained from term delivered umbilical vein, labeled by BrdU, and co-cultured with rabbit chondrocytes using Transwell method. The harvested cells were identified by immunocytochemistrical analysis. RESULTS AND CONCLUSION: The human umbilical cord blood stem cells were differentiated into chondrocytes under induction of rabbit chondrocytes, cytoplasm of which were stained into purple, and cellular nucleus was yellow stained with BrdU. The results revealed that human umbilical cord blood stem cells can in vitro differentiate into chondrocytes.

Objective To learn the current obstetric beds allocation,obstetric service delivery and access in midwifery institutions at various levels in the localities and nationwide as well as the trends,and assess the equity of obstetric beds allocation,for the purpose of recommending on a reasonable adjustment of obstetric beds allocation in these institutions.Methods Random sampling made in 44 cities in China for questionnaire survey on obstetric beds allocation,service delivery and utilization in 2008～2010 at all midwifery institutions in these cities.Interview of health administrators and medical workers at obstetric of midwifery institutions in 6 counties.Results Every thousand square kilometers in China average 5.9 midwifery institutions,and every thousand people average 0.24 obstetric beds.During 2008 ～ 2010,the number of beds and midwifery service delivery kept a growing trend while in townships obstetric service deliveries maintain a falling trend.The fairness index of maternity beds layout nationwide is 0.021283.Obstetric beds supply and demand ratio in different regions ranges among 0.97～ 1.41.The number of deliveries made in county level hospitals is 54.1％,but the beds in such hospitals account for but 48.1％.Conclusion The equity of obstetric beds allocation is good in terms of population layout.The quantity of obstetric beds meets the current needs nationwide,while the allocation of obstetric beds is less than reasonable among obstetric institutions of various levels in the country.The authors recommend a better control and adjustment of midwifery institutions layout,especially more such hospitals at the township level to meet the need of women delivery in hospital in remote areas.

Objective:To identify the role of transcription factors Sp1 and Sp3 in the expressional regulation of ezrin in human esophageal carcinoma cells.Methods:Esophageal carcinoma EC109 cells were transfected with expressing vectors CMV-Sp1 or CMV-Sp3,and the effect of Sp1 and Sp3 over-expression on ezrin mRNA and protein expression was determined by real time RT-PCR and Western blot analysis.Furthermore,EC109 cells were cotransfected with the ezrin promoter-directed luciferase reporter vector and control vector pRL-TK along with transcription factor expression vector.The roles of Sp1 and Sp3 in ezrin promoter activation and whether this activation occurred through the Sp1 binding site,-75/-69,were analyzed by dual-luciferase reporter assay system.Results:Over-expression of transcription factors Sp1 and Sp3 significantly increased the expression of ezrin mRNA and protein and the ezrin promoter activity in EC109 cells.Sp1 and Sp3 enhanced the promoter activity through different binding sites and only Sp1 did that through the-75/-69 site.Conclusion:Sp1 and Sp3 can regulate ezrin expression in EC109 cells.

Aim To observe the protective effects of breviscapine against lung fibrosis and investigate its possible mechanism.Methods Effects of breviscapine on cell proliferation,activation and extracellular matrix secretion were examined in mouse embryonic lung fibroblast L929 cells in vitro.The mouse model of bleomycin-induced lung fibrosis was used to assess the protective effect of breviscapine against lung fibrosis.Results In vitro,breviscapine had no cytotoxicity directly on L929 cells,however,it could suppress cell proliferation,activation and secretion of laminin(LN) and collagen Ⅰ(ColⅠ) induced by transforming growth factor beta1(TGF-?1) in L929 cells.In vivo,breviscapine could prevent increase in serum TGF-?1 and decrease in superoxide dismutase(SOD),peroxidase(POD) and catalase(CAT) in mice with lung fibrosis caused by bleomycin.In addition,breviscapine was able to reduce pulmonary hydroxyproline,collagen,malondialdehyde(MDA)and TGF-?1 in lung fibrosis mice.Conclusion Breviscapine has protective effect against lung fibrosis and the possible mechanism is to enhance antioxidative defense activities and prevent TGF-? signal.

To explore one-step method for the preparation of Ganoderma lucidum multicomponent microemulsion, according to the dissolution characteristics of triterpenes and polysaccharides in Ganoderma lucidum, formulation of the microemulsion was optimized. The optimal blank microemulsion was used as a solvent to sonicate the Ganoderma lucidum powder to prepare the multicomponent microemulsion, besides, its physicochemical properties were compared with the microemulsion made by conventional method. The results showed that the multicomponent microemulsion was characterized as (43.32 +/- 6.82) nm in size, 0.173 +/- 0.025 in polydispersity index (PDI) and -(3.98 +/- 0.82) mV in zeta potential. The contents of Ganoderma lucidum triterpenes and polysaccharides were (5.95 +/- 0.32) and (7.58 +/- 0.44) mg x mL(-1), respectively. Sonicating Ganoderma lucidum powder by blank microemulsion could prepare the multicomponent microemulsion. Compared with the conventional method, this method is simple and low cost, which is suitable for industrial production.

Objective To investigate the effect of ultrasound technology combined with Seldinger technique in the catheteration of peripherally inserted central catheter(PICC).Methods One thousand and eight malignant tumor patients undergoing PICC catheteration were divided into two groups:those with visible or palpable bouncy vein as the control group(n=540)and those with invisible or impalpable elbow vein as the experiment group(n=468).The control group were treated with PICC catheteration into the elbow vein as normal control group and in the experiment group the catheteration was done into the lower part of the upper arm of the basilic vein or brachial vein as the puncture point under the guidance of ultrasound with Seldinger technique.The two groups were compared in terms of success rate of one time puncturing, success rate of one time catheterization and postoperative phlebitis,venous thrombosis and catheter related infection rate.Result There were no significant difference in the success rate for one time puncturing,while the success rate of one time catheterization in the experiment group was significantly higher than that in the control group and the mechanical phlebitis,venous thrombosis,catheter related infection rate in the experiment group were significantly lower than those in the control group(P<0.001).Conclusion Ultrasound technology combined with Seldinger technique for PICC catheterization can obtain high success rate,lower postoperative complications and provide high security.