Objective To investigate the clinical significance of three-dim en sional CT in diagnosis and treatment of posterior pelvic ring fractures. Methods A retrospective analysis was done for 19 cases of posterior pelvic ring fractur es who were treated from March 2002 to August 2003 and had plain and three-dime nsional CT films. Their radiological characteristics and results were compared b etween the 2 kinds of film. Results 3-D CT corrected the misdiagnosis or uncert ainty of 9 cases who had plain radio-graphs. The 3-D CT showed obvious advanta ges over plain radio-graphs in detecting sacroiliac diastasis, sacroiliac joint fragments, fractures involving iliac and sacral lips abutting the sacroiliac jo int, sacral fracture and complicated comminuted fracture, because it clearly del ineated fractures of posterior pelvic ring and manifested the severity of commin ution and separation. Conclusion The 3-D CT scan provides valuable information for precise diagnosis and treatment plan for the complex posterior pelvic ring f ractures.

Various species of Garcinia Linn.have been widely used as food and folk medicines,for their significant economic and pharmaceutical values.As the development of modern analysis technology,many phytochemistry methods were applied in the research of Garcinia Linn.,in which especially the liquid chromatography coupled with mass spectrometry (LC-MS),was increasingly used in chemical study for its rapid and accurate analysis.In this article,based on the published articles,the LC-MS methods used in the study of Garcinia Linn.,including the qualitative analysis,new compounds discovery and quantitative analysis were reviewed,and it would provide some information for the study of C arcinia Linn.in the future.

Because the influence of fibrin on the reaction of plasm inogen activation by various plasminogen activators is different, the kinetic co nstant of the reaction of plasminogen activation catalyzed by InB with and witho ut fibrin were detected. The result is: Kfibrinm＝4.2 μmol*L -1，greater than the normal Km=0.379 μmol*L-1; kfib rincat＝0.107 s-1，greater than the normal kcat=0.0165 s-1. The results suggest that existence of fibrin in the reaction system of plasminogen activation depress the affinity between InB and plasminog en, but accelerates the hydrolysis of plasminogen by InB. The count up effect is inhibition.

Objective Bone marrow mesenchymal stem cells (BMSCs) were induced to differentiate to the special histological types of neurons in vitro.The morphological change of cells and positive expression of specific antigen on membrane were studied,and the function of connection between the induced BMSCs was also detected.The feasibility of BMSCs differentiate to the special histological types of neurons was investigated.Methods BMSCs were divided into group Ⅰ (induced with bFGF+GDNF),group Ⅱ (induced with bFGF+GDNF+WHI-P131 +Shh),and control group (no revulsive).The morphologic change of cells was observed,and the positive rate of neuron specific surface antigen and the content of dopamine were detected.Formation of mature synaptic structure was detected by immunohistochemical assay of postsynaptic density protein 95 (PSD-95) expression,and synaptic loop was shown by FM1-43 stain synaptic vesicles.Results By immunohistochemical staining,the positive rates of dopamine transporter (DAT) and tyrosine hydroxylase (TH) in group Ⅱ were significantly higher than those in group Ⅰ,and dopamine can been detected in cell culture supematant of group Ⅱ.After BMSCs was induced into dopamine neuron-like cells,number and length of cell protrusions,positive rate of PSD-95 and fluorescence intensity of FM1-43 in group Ⅱ were significantly higher than those of group Ⅰ.Conclusions There were no significant change in positive rate of neuron-specific surface markers,rate of cell survival and differentiation rate after BMSCs differentiated to dopaminergic neuron-like cells.The number and length of cell protrusions,content of dopamine in cell culture supematant,positive rate of dopaminergic neuron-specific surface antigen (DAT and TH),synaptic function index (positive rate of PSD-95 and fluorescence intensity of synaptic loop) of group Ⅱ were all significantly higher than that of group Ⅰ.

OBJECTIVE:To evaluate the biological compatibility and clinical therapeutic effect of the medical sterilized bone wax.METHODS:Embedding test and pathological test as well as hemolytic test were performed by using rabbits as test animal.12531case-times were investigated in respect to the therapeutic effect,prognosis and satisfactory rate.RESULTS:The embedded bone wax was coated by connective tissue and has not been absorbed without surrounding inflammation,edema or necrosis.The bone wax could not be absorbed after stanching bleeding of the bone broken surface.No hemolytic phenomena were observed.The wound healing obtained a satisfactory rate of99.1%.CONCLUSION:The sterilized medical bone wax has good biological compatibility and is safe and effective to stanch bleeding.It is convenient to use due to its singer dose sterilized packaging.

Objective To investigate effects analysis of joint function and MMP-7 and MMP-9 measurement after synovial ar-throscopic debridement for knee synovitis.Methods 72 patients with knee synovitis method based on a random draw were e-qually divided into the treatment group and the control group,the control group were given the traditional synovial planing surgery.The treatment group were given the arthroscopic debridement synovium.Results After treatment,the response rates in the treatment group and the control group were 97.2% and 80.6% respectively.The response rate of the treatment group were significantly better than the control group.The difference was statistically significant (P <0.05).The postopera-tive Lysholm scores were increased significantly,while the pain scores were significantly reduced,and the postoperative Ly-sholm score and pain scores difference compared between the two groups were also statistically significant.The difference was statistically significant (P <0.05).The postoperative synovial tissue MMP-7 and MMP-9 expression rates were in the two groups significantly lower.The difference was statistically significant (P <0.05),while the postoperative MMP-7 and MMP-9 expression rates of the treatment group were ignificantly lower than the control group (P <0.05).Conclusion Syn-ovial arthroscopic debridement for knee synovitis can relieve pain and improve knee function,reduce the expression of MMP-7 and MMP-9,thereby enhance the overall efficacy of the treatment.

OBJECTIVE:To prepare the sterilized medical bone wax and to establish the standard of quality control.METHODS:The bone wax was identified with chemical approach and the quality of bone wax was evaluated by saponification value.RESULTS:The bone wax was appropriate in formula,feasible in preparing technique and satisfactory in therapeutic efficacy with a satisfication rate of 98%.CONCLUSION:There are no obvious differences between the bone wax developed by our hospital and imported bone wax in quality,therefore the prepared bone wax can take the place of imported products.

This study examined the effect of intensive insulin therapy on immune function and inflammatory factors at the early phase after severe trauma. At day 1, 3, 5, 7 after admission, subsets of CD4(+) helper T lymphocytes (Th1/Th2) and human leukocyte antigen (HLA)-DR expression on CD14(+) monocytes were flow cytometrically measured. Levels of cytokines, including tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10) and other immunity markers, such as IgA, IgG, IgM, C3, C4 and C reaction protein (CRP) were examined in two groups. The results showed that TNF-α, IL-6 and CRP levels in the intensive insulin therapy group were significantly lower than those in the conventional therapy group, whereas IL-10 levels were substantially increased after intensive insulin therapy. C3 level at day 3, 5, 7 and C4 levels at day 5, 7 were lower in the intensive therapy group than in the conventional therapy group. Th1/Th2 ratios decreased gradually over time in both groups, and were much lower at day 3, 5, 7 in intensive therapy group. There were significant differences among day 3 to day 7 after admission in HLA-DR expression in CD14(+) monocytes. It was concluded that the intensive insulin therapy could decrease pro-inflammatory cytokines and increase anti-inflammatory cytokines in the elderly suffering from severe trauma, at the same time, with complement recovery being delayed. Moreover, intensive insulin therapy promoted immune suppression and, therefore, measures need be taken to address the issue.

This study examined the effect of intensive insulin therapy on immune function and inflammatory factors at the early phase after severe trauma. At day 1, 3, 5, 7 after admission, subsets of CD4(+) helper T lymphocytes (Th1/Th2) and human leukocyte antigen (HLA)-DR expression on CD14(+) monocytes were flow cytometrically measured. Levels of cytokines, including tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10) and other immunity markers, such as IgA, IgG, IgM, C3, C4 and C reaction protein (CRP) were examined in two groups. The results showed that TNF-α, IL-6 and CRP levels in the intensive insulin therapy group were significantly lower than those in the conventional therapy group, whereas IL-10 levels were substantially increased after intensive insulin therapy. C3 level at day 3, 5, 7 and C4 levels at day 5, 7 were lower in the intensive therapy group than in the conventional therapy group. Th1/Th2 ratios decreased gradually over time in both groups, and were much lower at day 3, 5, 7 in intensive therapy group. There were significant differences among day 3 to day 7 after admission in HLA-DR expression in CD14(+) monocytes. It was concluded that the intensive insulin therapy could decrease pro-inflammatory cytokines and increase anti-inflammatory cytokines in the elderly suffering from severe trauma, at the same time, with complement recovery being delayed. Moreover, intensive insulin therapy promoted immune suppression and, therefore, measures need be taken to address the issue.
Aged ; Aged, 80 and over ; Cytokines ; immunology ; Female ; Humans ; Hyperglycemia ; drug therapy ; immunology ; Hypoglycemic Agents ; therapeutic use ; Immunity, Innate ; drug effects ; immunology ; Immunologic Factors ; immunology ; Insulin ; therapeutic use ; Male ; Treatment Outcome ; Wounds and Injuries ; drug therapy ; immunology