Objective To investigate the prognostic significance of peripheral blood absolute monocyte/lymphocyte count in low‐risk patients with aggressive B cell lymphoma .Methods Retrospective study was performed in 42 low‐risk patients with ag‐gressive B cell lymphoma approved by histology between 2003 to 2013 .Peripheral blood absolute monocyte count (AMC) ,absolute lymphocyte count (ALC) ,lymphocyte/monocyte(LMR) and the some other clinical characters were estimated .Results The best absolute monocyte/lymphocyte count cut‐offs respectively were 475/mm3 and 1 005/mm3 ,analyzed by receiver operating character‐istic curve .AMC≥475/mm3 and ALC<1 005/mm3 were found to be independent predictors of progress free survival (RR=4 .271 , 3 .023 ;P= 0 .01 ,0 .39);AMC≥475/mm3 was found to be independent predictors of 5‐year overall survival (RR= 4 .680;P<0 .0001) in low‐risk patients with aggressive B cell lymphoma .Conclusion Higher AMC and/or lower ALC are poor prognosis fac‐tors .AMC and ALC may be important prognostic factors of low‐risk patients with aggressive B cell lymphoma .

BACKGROUND: Heat-activated nickel-titanium (HANT) wire is a new type of arch wire in orthodontic treatment, characterizing by well memory alloy ability and uneasily deformation. However, environmental temperature may affect its performance.OBJECTIVE: To compare the effects of HANT and common nickel-titanium wire in clinical application.METHODS: A total of 80 patients who have accepted and finished orthodontic treatment in the First Affiliated Hospital of Sun,Yat-sen University from July 2006 to November 2008 were randomly divided into two groups. The common group was treated with common arch wire in aligning and leveling stages, while the HANT group was treated using HANT in aligning and leveling stages. Tooth extracted cases were matched to non-tooth extracted cases. Indicators, such as time span for alignment, total treating time, times for wire breaking, times for bracket shedding, and times for return visits, were measured.RESULTS AND CONCLUSION: There was significant difference in treating time and times for wire breaking between the two groups (P < 0.05), but there was no significant difference in the times for bracket shedding. Anaphylactic response, toxic reaction,and other adverse reactions were not observed in the HANT group. Therefore, HANT wire can simplify orthodontic operation,shorten operation time beside the chair, save the total treating time, and reduce chances of shedding brackets and breaking wires.

AIM: To investigate the effects of Astragalus polysacharin(APS) on human fibroblast and human umbilical vein endothelia cell (HUVEC) proliferation, as well as its acts on adhesion between white cells and HUVECs. METHODS: Human fibroblasts from distal and proximal skin away the ulcer were cultured as normal fibroblasts(NF) and wounded fibroblasts(WF). MTT assay was used for detecting cell proliferation, Rose Bengal staining and fluorescence immunohistology assay were used for examining the adhesion of human polymorpho-nuclear cell(PMN) and TPH-1 to HUVECs. RESULTS: 2 44-156 mg/L APS promoted WF proliferation, and 2 44-39 mg/L APS also promoted NF proliferation, but it did not show any proliferating effect on HUVECs. APS inhibited the adhesion of PMN or TPH-1 to HUVECs induced by tumor necrosis factor(TNF). At 25-100 mg/L, it also inhibited both VCAM-1 and ICAM-1 expression in HUVECs induced by TNF. Treatment with APS for 12 h also inhibited CD44 expression in HUVECs. CONCLUSION: APS shows mitogenic activity on both human normal and wounded fibroblasts. It also exerts anti-inflammation effects by inhibiting adhesion molecule expression and adhesion of white cells to HUVECs. [